diff --git a/tencentcloud/basic_test.go b/tencentcloud/basic_test.go
index 3c7df96997..929ddc7b86 100644
--- a/tencentcloud/basic_test.go
+++ b/tencentcloud/basic_test.go
@@ -124,6 +124,21 @@ data "tencentcloud_instance_types" "default" {
 }
 `
 
+const (
+	defaultMySQLName = "preset_mysql"
+)
+
+// ref with `local.mysql_id`
+const CommonPresetMysql = `
+data "tencentcloud_mysql_instance" "mysql" {
+  instance_name = "` + defaultMySQLName + `"
+}
+
+locals {
+  mysql_id = data.tencentcloud_mysql_instance.mysql.instance_list.0.mysql_id
+}
+`
+
 const instanceCommonTestCase = defaultInstanceVariable + `
 resource "tencentcloud_instance" "default" {
   instance_name              = var.instance_name
@@ -158,6 +173,7 @@ resource "tencentcloud_mysql_instance" "default" {
   engine_version = "5.7"
   root_password = "0153Y474"
   availability_zone = var.availability_zone
+  force_delete = true
 }
 `
 
diff --git a/tencentcloud/data_source_tc_mysql_backup_list_test.go b/tencentcloud/data_source_tc_mysql_backup_list_test.go
index b3bb83def9..b9d2af47c9 100644
--- a/tencentcloud/data_source_tc_mysql_backup_list_test.go
+++ b/tencentcloud/data_source_tc_mysql_backup_list_test.go
@@ -23,8 +23,8 @@ func TestAccDataSourceMysqlBackupList_basic(t *testing.T) {
 }
 
 func testAccDataSourceMysqlBackupListConfig() string {
-	return mysqlInstanceCommonTestCase + `
+	return CommonPresetMysql + `
 data "tencentcloud_mysql_backup_list" "test" {
-  mysql_id = tencentcloud_mysql_instance.default.id
+  mysql_id = local.mysql_id
 }`
 }
diff --git a/tencentcloud/data_source_tc_mysql_instance_test.go b/tencentcloud/data_source_tc_mysql_instance_test.go
index 6cac82ad66..d19cb0eee0 100644
--- a/tencentcloud/data_source_tc_mysql_instance_test.go
+++ b/tencentcloud/data_source_tc_mysql_instance_test.go
@@ -14,13 +14,13 @@ func TestAccTencentCloudMysqlInstanceDataSource(t *testing.T) {
 		Providers: testAccProviders,
 		Steps: []resource.TestStep{
 			{
-				Config: testAccTencentCloudMysqlInstanceDataSourceConfig(mysqlInstanceCommonTestCase),
+				Config: testAccTencentCloudMysqlInstanceDataSourceConfig(),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					resource.TestCheckResourceAttr("data.tencentcloud_mysql_instance.mysql", "instance_list.#", "1"),
-					resource.TestCheckResourceAttr("data.tencentcloud_mysql_instance.mysql", "instance_list.0.instance_name", "tf-ci-test"),
+					resource.TestCheckResourceAttr("data.tencentcloud_mysql_instance.mysql", "instance_list.0.instance_name", defaultMySQLName),
 					resource.TestCheckResourceAttr("data.tencentcloud_mysql_instance.mysql", "instance_list.0.pay_type", "1"),
-					resource.TestCheckResourceAttr("data.tencentcloud_mysql_instance.mysql", "instance_list.0.memory_size", "1000"),
-					resource.TestCheckResourceAttr("data.tencentcloud_mysql_instance.mysql", "instance_list.0.volume_size", "25"),
+					resource.TestCheckResourceAttr("data.tencentcloud_mysql_instance.mysql", "instance_list.0.memory_size", "4000"),
+					resource.TestCheckResourceAttr("data.tencentcloud_mysql_instance.mysql", "instance_list.0.volume_size", "200"),
 					resource.TestCheckResourceAttr("data.tencentcloud_mysql_instance.mysql", "instance_list.0.engine_version", "5.7"),
 					resource.TestCheckResourceAttrSet("data.tencentcloud_mysql_instance.mysql", "instance_list.0.vpc_id"),
 					resource.TestCheckResourceAttrSet("data.tencentcloud_mysql_instance.mysql", "instance_list.0.subnet_id"),
@@ -31,12 +31,10 @@ func TestAccTencentCloudMysqlInstanceDataSource(t *testing.T) {
 	})
 }
 
-func testAccTencentCloudMysqlInstanceDataSourceConfig(commonTestCase string) string {
+func testAccTencentCloudMysqlInstanceDataSourceConfig() string {
 	return fmt.Sprintf(`
-%s
 data "tencentcloud_mysql_instance" "mysql" {
-	mysql_id = tencentcloud_mysql_instance.default.id
-	instance_name = tencentcloud_mysql_instance.default.instance_name
+	instance_name = "%s"
 }
-	`, commonTestCase)
+	`, defaultMySQLName)
 }
diff --git a/tencentcloud/data_source_tc_mysql_parameter_list_test.go b/tencentcloud/data_source_tc_mysql_parameter_list_test.go
index bf5c9e5af2..ae9066f4e9 100644
--- a/tencentcloud/data_source_tc_mysql_parameter_list_test.go
+++ b/tencentcloud/data_source_tc_mysql_parameter_list_test.go
@@ -24,7 +24,7 @@ func TestAccTencentCloudMysqlParameterListDataSource(t *testing.T) {
 				),
 			},
 			{
-				Config: testAccMysqlParameterListDataSourceConfig(mysqlInstanceCommonTestCase),
+				Config: testAccMysqlParameterListDataSourceConfig(CommonPresetMysql),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					resource.TestCheckResourceAttrSet("data.tencentcloud_mysql_parameter_list.mysql", "parameter_list.#"),
 					resource.TestCheckResourceAttrSet("data.tencentcloud_mysql_parameter_list.mysql", "parameter_list.0.parameter_name"),
@@ -49,7 +49,7 @@ func testAccMysqlParameterListDataSourceConfig(commonTestCase string) string {
 	return fmt.Sprintf(`
 %s
 data "tencentcloud_mysql_parameter_list" "mysql" {
-	mysql_id = tencentcloud_mysql_instance.default.id
+	mysql_id = local.mysql_id
 }
 	`, commonTestCase)
 }
diff --git a/tencentcloud/resource_tc_mysql_account_privilege_test.go b/tencentcloud/resource_tc_mysql_account_privilege_test.go
index 4c604df2a5..f8975b4dd5 100644
--- a/tencentcloud/resource_tc_mysql_account_privilege_test.go
+++ b/tencentcloud/resource_tc_mysql_account_privilege_test.go
@@ -21,7 +21,7 @@ func TestAccTencentCloudMysqlAccountPrivilege(t *testing.T) {
 		CheckDestroy: testAccMysqlAccountPrivilegeDestroy,
 		Steps: []resource.TestStep{
 			{
-				Config: testAccMysqlAccountPrivilege(mysqlInstanceCommonTestCase),
+				Config: testAccMysqlAccountPrivilege(),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccMysqlAccountPrivilegeExists("tencentcloud_mysql_account_privilege.mysql_account_privilege"),
 					resource.TestCheckResourceAttrSet("tencentcloud_mysql_account_privilege.mysql_account_privilege", "mysql_id"),
@@ -36,7 +36,7 @@ func TestAccTencentCloudMysqlAccountPrivilege(t *testing.T) {
 				),
 			},
 			{
-				Config: testAccMysqlAccountPrivilegeUpdate(mysqlInstanceCommonTestCase),
+				Config: testAccMysqlAccountPrivilegeUpdate(),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccMysqlAccountPrivilegeExists("tencentcloud_mysql_account_privilege.mysql_account_privilege"),
 					resource.TestCheckResourceAttrSet("tencentcloud_mysql_account_privilege.mysql_account_privilege", "mysql_id"),
@@ -177,41 +177,41 @@ func testAccMysqlAccountPrivilegeDestroy(s *terraform.State) error {
 	return nil
 }
 
-func testAccMysqlAccountPrivilege(commonTestCase string) string {
+func testAccMysqlAccountPrivilege() string {
 	return fmt.Sprintf(`
 %s
 resource "tencentcloud_mysql_account" "mysql_account" {
-  mysql_id    = tencentcloud_mysql_instance.default.id
-  name        = "test"
+  mysql_id    = local.mysql_id
+  name        = "previlege_test"
   host        = "119.168.110.%%"
   password    = "test1234"
   description = "test from terraform"
 }
 resource "tencentcloud_mysql_account_privilege" "mysql_account_privilege" {
-  mysql_id       = tencentcloud_mysql_instance.default.id
+  mysql_id       = local.mysql_id
   account_name   = tencentcloud_mysql_account.mysql_account.name
   account_host   = tencentcloud_mysql_account.mysql_account.host
   privileges     = ["SELECT", "INSERT", "UPDATE", "DELETE"]
   database_names = ["test"]
-}`, commonTestCase)
+}`, CommonPresetMysql)
 }
 
-func testAccMysqlAccountPrivilegeUpdate(commonTestCase string) string {
+func testAccMysqlAccountPrivilegeUpdate() string {
 	return fmt.Sprintf(`
 %s
 resource "tencentcloud_mysql_account" "mysql_account" {
-  mysql_id    = tencentcloud_mysql_instance.default.id
-  name        = "test"
+  mysql_id    = local.mysql_id
+  name        = "previlege_test"
   host        = "119.168.110.%%"
   password    = "test1234"
   description = "test from terraform"
 }
 resource "tencentcloud_mysql_account_privilege" "mysql_account_privilege" {
-  mysql_id       = tencentcloud_mysql_instance.default.id
+  mysql_id       = local.mysql_id
   account_name   = tencentcloud_mysql_account.mysql_account.name
   account_host   = tencentcloud_mysql_account.mysql_account.host
   privileges     = ["TRIGGER"]
   database_names = ["test"]
-}`, commonTestCase)
+}`, CommonPresetMysql)
 
 }
diff --git a/tencentcloud/resource_tc_mysql_account_test.go b/tencentcloud/resource_tc_mysql_account_test.go
index dbc383f5a3..dc0907b825 100644
--- a/tencentcloud/resource_tc_mysql_account_test.go
+++ b/tencentcloud/resource_tc_mysql_account_test.go
@@ -20,7 +20,7 @@ func TestAccTencentCloudMysqlAccountResource(t *testing.T) {
 		CheckDestroy: testAccCheckMysqlAccountDestroy,
 		Steps: []resource.TestStep{
 			{
-				Config: testAccMysqlAccount(mysqlInstanceCommonTestCase),
+				Config: testAccMysqlAccount(),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccCheckMysqlAccountExists("tencentcloud_mysql_account.mysql_account"),
 					resource.TestCheckResourceAttrSet("tencentcloud_mysql_account.mysql_account", "mysql_id"),
@@ -123,15 +123,16 @@ func testAccCheckMysqlAccountDestroy(s *terraform.State) error {
 	return nil
 }
 
-func testAccMysqlAccount(commonTestCase string) string {
+func testAccMysqlAccount() string {
 	return fmt.Sprintf(`
 %s
+
 resource "tencentcloud_mysql_account" "mysql_account" {
-	mysql_id = tencentcloud_mysql_instance.default.id
+	mysql_id = local.mysql_id
 	name    = "test"
     host = "192.168.0.%%"
 	password = "test1234"
 	description = "test from terraform"
 }
-	`, commonTestCase)
+	`, CommonPresetMysql)
 }
diff --git a/tencentcloud/resource_tc_mysql_backup_policy_test.go b/tencentcloud/resource_tc_mysql_backup_policy_test.go
index ec841884af..8d6ff3ffe9 100644
--- a/tencentcloud/resource_tc_mysql_backup_policy_test.go
+++ b/tencentcloud/resource_tc_mysql_backup_policy_test.go
@@ -19,7 +19,7 @@ func TestAccTencentCloudMysqlBackupPolicy(t *testing.T) {
 		CheckDestroy: testAccTencentCloudMysqlBackupPolicyDestroy,
 		Steps: []resource.TestStep{
 			{
-				Config: testAccMysqlBackupPolicy(mysqlInstanceCommonTestCase),
+				Config: testAccMysqlBackupPolicy(),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccTencentCloudMysqlBackupPolicyExists("tencentcloud_mysql_backup_policy.mysql_backup_policy"),
 					resource.TestCheckResourceAttrSet("tencentcloud_mysql_backup_policy.mysql_backup_policy", "mysql_id"),
@@ -29,7 +29,7 @@ func TestAccTencentCloudMysqlBackupPolicy(t *testing.T) {
 				),
 			},
 			{
-				Config: testAccMysqlBackupPolicyUpdate(mysqlInstanceCommonTestCase),
+				Config: testAccMysqlBackupPolicyUpdate(),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccTencentCloudMysqlBackupPolicyExists("tencentcloud_mysql_backup_policy.mysql_backup_policy"),
 					resource.TestCheckResourceAttrSet("tencentcloud_mysql_backup_policy.mysql_backup_policy", "mysql_id"),
@@ -105,22 +105,22 @@ func testAccTencentCloudMysqlBackupPolicyDestroy(s *terraform.State) error {
 	return nil
 }
 
-func testAccMysqlBackupPolicy(commonTestCase string) string {
+func testAccMysqlBackupPolicy() string {
 	return fmt.Sprintf(`
 %s
 resource "tencentcloud_mysql_backup_policy" "mysql_backup_policy" {
-  mysql_id         = tencentcloud_mysql_instance.default.id
+  mysql_id         = local.mysql_id
   retention_period = 56
   backup_time      = "10:00-14:00"
-}`, commonTestCase)
+}`, CommonPresetMysql)
 }
 
-func testAccMysqlBackupPolicyUpdate(commonTestCase string) string {
+func testAccMysqlBackupPolicyUpdate() string {
 	return fmt.Sprintf(`
 %s
 resource "tencentcloud_mysql_backup_policy" "mysql_backup_policy" {
-  mysql_id         = tencentcloud_mysql_instance.default.id
+  mysql_id         = local.mysql_id
   retention_period = 80
   backup_time      = "06:00-10:00"
-}`, commonTestCase)
+}`, CommonPresetMysql)
 }
diff --git a/tencentcloud/resource_tc_mysql_instance_test.go b/tencentcloud/resource_tc_mysql_instance_test.go
index db15514a64..e568cab1c3 100644
--- a/tencentcloud/resource_tc_mysql_instance_test.go
+++ b/tencentcloud/resource_tc_mysql_instance_test.go
@@ -227,38 +227,6 @@ func TestAccTencentCloudMysqlMasterInstance_basic_and_update(t *testing.T) {
 	})
 }
 
-func TestAccTencentCloudMysqlPrepaid(t *testing.T) {
-	t.Parallel()
-	resource.Test(t, resource.TestCase{
-		PreCheck:     func() { testAccPreCheck(t) },
-		Providers:    testAccProviders,
-		CheckDestroy: testAccCheckMysqlMasterInstanceDestroy,
-		Steps: []resource.TestStep{
-			{
-				Config: testAccMysqlMasterInstance_prepaid(),
-				Check: resource.ComposeAggregateTestCheckFunc(
-					testAccCheckMysqlMasterInstanceExists("tencentcloud_mysql_instance.prepaid"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_instance.prepaid", "instance_name", "testAccMysqlPrepaid"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_instance.prepaid", "slave_deploy_mode", "0"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_instance.prepaid", "slave_sync_mode", "0"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_instance.prepaid", "availability_zone", TestAccTencentCloudMysqlMasterInstance_availability_zone),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_instance.prepaid", "first_slave_zone", TestAccTencentCloudMysqlMasterInstance_availability_zone),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_instance.prepaid", "auto_renew_flag", "0"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_instance.prepaid", "charge_type", "PREPAID"),
-				),
-			},
-			// update auto_renew_flag
-			{
-				Config: testAccMysqlMasterInstance_prepaidupdate(),
-				Check: resource.ComposeAggregateTestCheckFunc(
-					testAccCheckMysqlMasterInstanceExists("tencentcloud_mysql_instance.prepaid"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_instance.prepaid", "auto_renew_flag", "1"),
-				),
-			},
-		},
-	})
-}
-
 func testAccCheckMysqlMasterInstanceDestroy(s *terraform.State) error {
 	logId := getLogId(contextNil)
 	ctx := context.WithValue(context.TODO(), logIdKey, logId)
@@ -323,39 +291,6 @@ resource "tencentcloud_mysql_instance" "mysql_master" {
 }`
 }
 
-func testAccMysqlMasterInstance_prepaid() string {
-	return `
-resource "tencentcloud_mysql_instance" "prepaid" {
-  charge_type 		= "PREPAID"
-  mem_size          = 1000
-  volume_size       = 50
-  instance_name     = "testAccMysqlPrepaid"
-  engine_version    = "5.7"
-  root_password     = "test1234"
-  intranet_port     = 3360
-  availability_zone = "ap-guangzhou-3"
-  first_slave_zone  = "ap-guangzhou-3"
-  force_delete = false
-}`
-}
-
-func testAccMysqlMasterInstance_prepaidupdate() string {
-	return `
-resource "tencentcloud_mysql_instance" "prepaid" {
-  charge_type 		= "PREPAID"
-  mem_size          = 1000
-  volume_size       = 50
-  auto_renew_flag	= 1
-  instance_name     = "testAccMysqlPrepaid"
-  engine_version    = "5.7"
-  root_password     = "test1234"
-  intranet_port     = 3360
-  availability_zone = "ap-guangzhou-3"
-  first_slave_zone  = "ap-guangzhou-3"
-  force_delete		= false
-}`
-}
-
 func testAccMysqlMasterInstance_fullslave() string {
 	return `
 resource "tencentcloud_mysql_instance" "mysql_master" {
diff --git a/tencentcloud/resource_tc_mysql_privilege_test.go b/tencentcloud/resource_tc_mysql_privilege_test.go
index 30410b60ef..39602d105d 100644
--- a/tencentcloud/resource_tc_mysql_privilege_test.go
+++ b/tencentcloud/resource_tc_mysql_privilege_test.go
@@ -26,7 +26,7 @@ func TestAccTencentCloudMysqlPrivilege(t *testing.T) {
 		CheckDestroy: testAccMysqlPrivilegeDestroy,
 		Steps: []resource.TestStep{
 			{
-				Config: testAccMysqlPrivilege(mysqlInstanceCommonTestCase),
+				Config: testAccMysqlPrivilege(),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccMysqlPrivilegeExists,
 					resource.TestCheckResourceAttrSet(testAccTencentCloudMysqlPrivilegeName, "mysql_id"),
@@ -38,7 +38,7 @@ func TestAccTencentCloudMysqlPrivilege(t *testing.T) {
 				),
 			},
 			{
-				Config: testAccMysqlPrivilegeUpdate(mysqlInstanceCommonTestCase),
+				Config: testAccMysqlPrivilegeUpdate(),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccMysqlPrivilegeExists,
 					resource.TestCheckResourceAttrSet(testAccTencentCloudMysqlPrivilegeName, "mysql_id"),
@@ -156,6 +156,9 @@ func testAccMysqlPrivilegeDestroy(s *terraform.State) error {
 				if sdkErr.Code == "InternalError.TaskError" && strings.Contains(sdkErr.Message, "User does not exist") {
 					return nil
 				}
+				if sdkErr.Code == "InvalidParameterValue.UserNotExistError" {
+					return nil
+				}
 			}
 			return retryError(inErr, InternalError)
 		}
@@ -178,11 +181,11 @@ func testAccMysqlPrivilegeDestroy(s *terraform.State) error {
 	return nil
 }
 
-func testAccMysqlPrivilege(commonTestCase string) string {
+func testAccMysqlPrivilege() string {
 	return fmt.Sprintf(`
 %s
 resource "tencentcloud_mysql_account" "mysql_account" {
-  mysql_id    = tencentcloud_mysql_instance.default.id
+  mysql_id    = local.mysql_id
   name        = "test11"
   host        = "119.168.110.%%"
   password    = "test1234"
@@ -190,7 +193,7 @@ resource "tencentcloud_mysql_account" "mysql_account" {
 }
 
 resource "tencentcloud_mysql_privilege" "privilege" {
-  mysql_id     = tencentcloud_mysql_instance.default.id
+  mysql_id     = local.mysql_id
   account_name = tencentcloud_mysql_account.mysql_account.name
   account_host = tencentcloud_mysql_account.mysql_account.host
   global       = ["TRIGGER"]
@@ -209,14 +212,14 @@ resource "tencentcloud_mysql_privilege" "privilege" {
     table_name    = "user"
     column_name   = "host"
   }
-}`, commonTestCase)
+}`, CommonPresetMysql)
 }
 
-func testAccMysqlPrivilegeUpdate(commonTestCase string) string {
+func testAccMysqlPrivilegeUpdate() string {
 	return fmt.Sprintf(`
 %s
 resource "tencentcloud_mysql_account" "mysql_account" {
-  mysql_id    = tencentcloud_mysql_instance.default.id
+  mysql_id    = local.mysql_id
   name        = "test11"
   host        = "119.168.110.%%"
   password    = "test1234"
@@ -224,7 +227,7 @@ resource "tencentcloud_mysql_account" "mysql_account" {
 }
 
 resource "tencentcloud_mysql_privilege" "privilege" {
-  mysql_id     = tencentcloud_mysql_instance.default.id
+  mysql_id     = local.mysql_id
   account_name = tencentcloud_mysql_account.mysql_account.name
   account_host = tencentcloud_mysql_account.mysql_account.host
   global       = ["TRIGGER","SELECT"]
@@ -238,5 +241,5 @@ resource "tencentcloud_mysql_privilege" "privilege" {
     database_name = "mysql"
     table_name    = "db"
   }
-}`, commonTestCase)
+}`, CommonPresetMysql)
 }
diff --git a/tencentcloud/resource_tc_mysql_readonly_instance.go b/tencentcloud/resource_tc_mysql_readonly_instance.go
index 2c3f2b6e00..cfd0f70ad1 100644
--- a/tencentcloud/resource_tc_mysql_readonly_instance.go
+++ b/tencentcloud/resource_tc_mysql_readonly_instance.go
@@ -80,6 +80,18 @@ func mysqlCreateReadonlyInstancePayByMonth(ctx context.Context, d *schema.Resour
 	}
 	request.Period = helper.IntInt64(period)
 
+	if v, ok := d.GetOk("mem_size"); ok {
+		request.Memory = helper.IntInt64(v.(int))
+	}
+
+	if v, ok := d.GetOk("volume_size"); ok {
+		request.Volume = helper.IntInt64(v.(int))
+	}
+
+	if v, ok := d.GetOk("cpu"); ok {
+		request.Cpu = helper.IntInt64(v.(int))
+	}
+
 	autoRenewFlag := int64(d.Get("auto_renew_flag").(int))
 	request.AutoRenewFlag = &autoRenewFlag
 
@@ -124,6 +136,18 @@ func mysqlCreateReadonlyInstancePayByUse(ctx context.Context, d *schema.Resource
 	defaultRoGroupMode := "allinone"
 	request.RoGroup = &cdb.RoGroup{RoGroupMode: &defaultRoGroupMode}
 
+	if v, ok := d.GetOk("mem_size"); ok {
+		request.Memory = helper.IntInt64(v.(int))
+	}
+
+	if v, ok := d.GetOk("volume_size"); ok {
+		request.Volume = helper.IntInt64(v.(int))
+	}
+
+	if v, ok := d.GetOk("cpu"); ok {
+		request.Cpu = helper.IntInt64(v.(int))
+	}
+
 	if err := mysqlAllInstanceRoleSet(ctx, request, d, meta); err != nil {
 		return err
 	}
diff --git a/tencentcloud/resource_tc_mysql_readonly_instance_test.go b/tencentcloud/resource_tc_mysql_readonly_instance_test.go
index 71fd0726a2..3094e2c30e 100644
--- a/tencentcloud/resource_tc_mysql_readonly_instance_test.go
+++ b/tencentcloud/resource_tc_mysql_readonly_instance_test.go
@@ -18,13 +18,12 @@ func TestAccTencentCloudMysqlReadonlyInstance(t *testing.T) {
 		CheckDestroy: testAccCheckMysqlReadonlyInstanceDestroy,
 		Steps: []resource.TestStep{
 			{
-				Config: testAccMysqlReadonlyInstance(mysqlInstanceHighPerformanceTestCase),
+				Config: testAccMysqlReadonlyInstance(CommonPresetMysql),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccCheckMysqlInstanceExists("tencentcloud_mysql_readonly_instance.mysql_readonly"),
 					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly", "instance_name", "mysql-readonly-test"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly", "pay_type", "1"),
 					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly", "mem_size", "2000"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly", "volume_size", "50"),
+					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly", "volume_size", "200"),
 					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly", "intranet_port", "3360"),
 					resource.TestCheckResourceAttrSet("tencentcloud_mysql_readonly_instance.mysql_readonly", "intranet_ip"),
 					resource.TestCheckResourceAttrSet("tencentcloud_mysql_readonly_instance.mysql_readonly", "status"),
@@ -34,7 +33,7 @@ func TestAccTencentCloudMysqlReadonlyInstance(t *testing.T) {
 			},
 			// add tag
 			{
-				Config: testAccMysqlReadonlyInstance_multiTags(mysqlInstanceHighPerformanceTestCase, "read"),
+				Config: testAccMysqlReadonlyInstance_multiTags(CommonPresetMysql, "read"),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccCheckMysqlInstanceExists("tencentcloud_mysql_readonly_instance.mysql_readonly"),
 					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly", "tags.role", "read"),
@@ -42,7 +41,7 @@ func TestAccTencentCloudMysqlReadonlyInstance(t *testing.T) {
 			},
 			// update tag
 			{
-				Config: testAccMysqlReadonlyInstance_multiTags(mysqlInstanceHighPerformanceTestCase, "readonly"),
+				Config: testAccMysqlReadonlyInstance_multiTags(CommonPresetMysql, "readonly"),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccCheckMysqlInstanceExists("tencentcloud_mysql_readonly_instance.mysql_readonly"),
 					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly", "tags.role", "readonly"),
@@ -50,7 +49,7 @@ func TestAccTencentCloudMysqlReadonlyInstance(t *testing.T) {
 			},
 			// remove tag
 			{
-				Config: testAccMysqlReadonlyInstance(mysqlInstanceHighPerformanceTestCase),
+				Config: testAccMysqlReadonlyInstance(CommonPresetMysql),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccCheckMysqlInstanceExists("tencentcloud_mysql_readonly_instance.mysql_readonly"),
 					resource.TestCheckNoResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly", "tags.role"),
@@ -58,7 +57,7 @@ func TestAccTencentCloudMysqlReadonlyInstance(t *testing.T) {
 			},
 			// update instance_name
 			{
-				Config: testAccMysqlReadonlyInstance_update(mysqlInstanceHighPerformanceTestCase, "mysql-readonly-update", "3360"),
+				Config: testAccMysqlReadonlyInstance_update(CommonPresetMysql, "mysql-readonly-update", "3360"),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccCheckMysqlInstanceExists("tencentcloud_mysql_readonly_instance.mysql_readonly"),
 					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly", "instance_name", "mysql-readonly-update"),
@@ -66,7 +65,7 @@ func TestAccTencentCloudMysqlReadonlyInstance(t *testing.T) {
 			},
 			// update intranet_port
 			{
-				Config: testAccMysqlReadonlyInstance_update(mysqlInstanceHighPerformanceTestCase, "mysql-readonly-update", "3361"),
+				Config: testAccMysqlReadonlyInstance_update(CommonPresetMysql, "mysql-readonly-update", "3361"),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccCheckMysqlInstanceExists("tencentcloud_mysql_readonly_instance.mysql_readonly"),
 					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly", "intranet_port", "3361"),
@@ -76,42 +75,6 @@ func TestAccTencentCloudMysqlReadonlyInstance(t *testing.T) {
 	})
 }
 
-func TestAccTencentCloudReadonlyMysqlPrepaid(t *testing.T) {
-	t.Parallel()
-	resource.Test(t, resource.TestCase{
-		PreCheck:     func() { testAccPreCheck(t) },
-		Providers:    testAccProviders,
-		CheckDestroy: testAccCheckMysqlMasterInstanceDestroy,
-		Steps: []resource.TestStep{
-			{
-				Config: testAccMysqlReadonlyInstancePrepaid(mysqlInstanceHighPerformancePrepaidTestCase),
-				Check: resource.ComposeAggregateTestCheckFunc(
-					testAccCheckMysqlMasterInstanceExists("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "instance_name", "mysql-readonly-test"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "mem_size", "2000"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "volume_size", "50"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "intranet_port", "3360"),
-					resource.TestCheckResourceAttrSet("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "intranet_ip"),
-					resource.TestCheckResourceAttrSet("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "status"),
-					resource.TestCheckResourceAttrSet("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "task_status"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "tags.test", "test-tf"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "auto_renew_flag", "0"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "pay_type", "0"),
-				),
-			},
-			// update auto_renew_flag
-			{
-				Config: testAccMysqlReadonlyInstancePrepaid_update(mysqlInstanceHighPerformancePrepaidTestCase, 1),
-				Check: resource.ComposeAggregateTestCheckFunc(
-					testAccCheckMysqlMasterInstanceExists("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "pay_type", "0"),
-					resource.TestCheckResourceAttr("tencentcloud_mysql_readonly_instance.mysql_readonly_prepaid", "auto_renew_flag", "1"),
-				),
-			},
-		},
-	})
-}
-
 func testAccCheckMysqlReadonlyInstanceDestroy(s *terraform.State) error {
 	logId := getLogId(contextNil)
 	ctx := context.WithValue(context.TODO(), logIdKey, logId)
@@ -165,9 +128,9 @@ func testAccMysqlReadonlyInstance(mysqlTestCase string) string {
 	return fmt.Sprintf(`
 %s
 resource "tencentcloud_mysql_readonly_instance" "mysql_readonly" {
-  master_instance_id = tencentcloud_mysql_instance.default.id
+  master_instance_id = local.mysql_id
   mem_size           = 2000
-  volume_size        = 50
+  volume_size        = 200
   instance_name      = "mysql-readonly-test"
   intranet_port      = 3360
   tags = {
@@ -181,9 +144,10 @@ func testAccMysqlReadonlyInstance_multiTags(mysqlTestCase, value string) string
 	return fmt.Sprintf(`
 %s
 resource "tencentcloud_mysql_readonly_instance" "mysql_readonly" {
-  master_instance_id = tencentcloud_mysql_instance.default.id
+  master_instance_id = local.mysql_id
   mem_size           = 2000
-  volume_size        = 50
+  cpu                = 1
+  volume_size        = 200
   instance_name      = "mysql-readonly-test"
   intranet_port      = 3360
   tags = {
@@ -198,9 +162,10 @@ func testAccMysqlReadonlyInstance_update(mysqlTestCase, instance_name, instranet
 	return fmt.Sprintf(`
 %s
 resource "tencentcloud_mysql_readonly_instance" "mysql_readonly" {
-  master_instance_id = tencentcloud_mysql_instance.default.id
+  master_instance_id = local.mysql_id
   mem_size           = 2000
-  volume_size        = 50
+  cpu                = 1
+  volume_size        = 200
   instance_name      = "%s"
   intranet_port      = %s 
   tags = {
@@ -214,9 +179,10 @@ func testAccMysqlReadonlyInstancePrepaid(mysqlTestCase string) string {
 	return fmt.Sprintf(`
 %s
 resource "tencentcloud_mysql_readonly_instance" "mysql_readonly_prepaid" {
-  master_instance_id = tencentcloud_mysql_instance.default.id
+  master_instance_id = local.mysql_id
   mem_size           = 2000
-  volume_size        = 50
+  cpu                = 1
+  volume_size        = 200
   instance_name      = "mysql-readonly-test"
   intranet_port      = 3360
   pay_type = 0
@@ -232,9 +198,9 @@ func testAccMysqlReadonlyInstancePrepaid_update(mysqlTestCase string, renewFlag
 	return fmt.Sprintf(`
 %s
 resource "tencentcloud_mysql_readonly_instance" "mysql_readonly_prepaid" {
-  master_instance_id = tencentcloud_mysql_instance.default.id
+  master_instance_id = local.mysql_id
   mem_size           = 2000
-  volume_size        = 50
+  volume_size        = 200
   instance_name      = "mysql-readonly-test"
   intranet_port      = 3360
   auto_renew_flag    = %d