diff --git a/tencentcloud/resource_tc_emr_cluster.go b/tencentcloud/resource_tc_emr_cluster.go
index a91a2be0c8..cfa4bbd646 100644
--- a/tencentcloud/resource_tc_emr_cluster.go
+++ b/tencentcloud/resource_tc_emr_cluster.go
@@ -147,7 +147,7 @@ func resourceTencentCloudEmrCluster() *schema.Resource {
 				Type:         schema.TypeInt,
 				Required:     true,
 				ValidateFunc: validateIntegerInRange(0, 1),
-				Description:  "The pay mode of instance. 0 is pay on an annual basis, 1 is pay on a measure basis.",
+				Description:  "The pay mode of instance. 0 represent POSTPAID_BY_HOUR, 1 represent PREPAID.",
 			},
 			"placement": {
 				Type:        schema.TypeMap,
diff --git a/tencentcloud/resource_tc_emr_cluster_test.go b/tencentcloud/resource_tc_emr_cluster_test.go
index 607e74f506..9d5f8e1a58 100644
--- a/tencentcloud/resource_tc_emr_cluster_test.go
+++ b/tencentcloud/resource_tc_emr_cluster_test.go
@@ -183,6 +183,20 @@ func testAccCheckEmrExists(n string) resource.TestCheckFunc {
 }
 
 const testEmrBasic = defaultEMRVariable + `
+data "tencentcloud_instance_types" "cvm4c8m" {
+	exclude_sold_out=true
+	cpu_core_count=4
+	memory_size=8
+    filter {
+      name   = "instance-charge-type"
+      values = ["POSTPAID_BY_HOUR"]
+    }
+    filter {
+    name   = "zone"
+    values = ["ap-guangzhou-3"]
+  }
+}
+
 resource "tencentcloud_emr_cluster" "emrrrr" {
 	product_id=4
 	display_strategy="clusterList"
@@ -201,7 +215,7 @@ resource "tencentcloud_emr_cluster" "emrrrr" {
 		cpu=4
 		disk_size=100
 		disk_type="CLOUD_PREMIUM"
-		spec="CVM.S2"
+		spec="CVM.${data.tencentcloud_instance_types.cvm4c8m.instance_types.0.family}"
 		storage_type=5
 		root_size=50
 	  }
@@ -210,7 +224,7 @@ resource "tencentcloud_emr_cluster" "emrrrr" {
 		cpu=4
 		disk_size=100
 		disk_type="CLOUD_PREMIUM"
-		spec="CVM.S2"
+		spec="CVM.${data.tencentcloud_instance_types.cvm4c8m.instance_types.0.family}"
 		storage_type=5
 		root_size=50
 	  }
diff --git a/website/docs/r/emr_cluster.html.markdown b/website/docs/r/emr_cluster.html.markdown
index 2393d92d62..cba267df5a 100644
--- a/website/docs/r/emr_cluster.html.markdown
+++ b/website/docs/r/emr_cluster.html.markdown
@@ -64,7 +64,7 @@ The following arguments are supported:
 * `display_strategy` - (Required, String, ForceNew) Display strategy of EMR instance.
 * `instance_name` - (Required, String, ForceNew) Name of the instance, which can contain 6 to 36 English letters, Chinese characters, digits, dashes(-), or underscores(_).
 * `login_settings` - (Required, Map, ForceNew) Instance login settings.
-* `pay_mode` - (Required, Int) The pay mode of instance. 0 is pay on an annual basis, 1 is pay on a measure basis.
+* `pay_mode` - (Required, Int) The pay mode of instance. 0 represent POSTPAID_BY_HOUR, 1 represent PREPAID.
 * `placement` - (Required, Map, ForceNew) The location of the instance.
 * `product_id` - (Required, Int, ForceNew) The product id of EMR instance.
 * `softwares` - (Required, List: [`String`], ForceNew) The softwares of a EMR instance.