diff --git a/components/bt/host/bluedroid/api/include/api/esp_gap_ble_api.h b/components/bt/host/bluedroid/api/include/api/esp_gap_ble_api.h
index 34beebdf2e9..57bd34e6872 100644
--- a/components/bt/host/bluedroid/api/include/api/esp_gap_ble_api.h
+++ b/components/bt/host/bluedroid/api/include/api/esp_gap_ble_api.h
@@ -760,6 +760,9 @@ typedef uint8_t esp_ble_gap_sync_t;
 
 typedef uint8_t esp_ble_gap_adv_type_t;
 
+/// Extend advertising tx power, range: [-127, +126] dBm
+#define EXT_ADV_TX_PWR_NO_PREFERENCE                      (127) /*!< host has no preference for tx power */
+
 /**
 * @brief ext adv parameters
 */
diff --git a/components/bt/host/bluedroid/bta/include/bta/bta_api.h b/components/bt/host/bluedroid/bta/include/bta/bta_api.h
index c3609ff16c8..6eea241d778 100644
--- a/components/bt/host/bluedroid/bta/include/bta/bta_api.h
+++ b/components/bt/host/bluedroid/bta/include/bta/bta_api.h
@@ -1469,7 +1469,7 @@ typedef struct {
     tBLE_ADDR_TYPE peer_addr_type;
     BD_ADDR peer_addr;
     tBTA_BLE_AFP filter_policy;
-    UINT8 tx_power;
+    INT8 tx_power;
     tBTA_DM_BLE_GAP_PHY primary_phy;
     UINT8 max_skip;
     tBTA_DM_BLE_GAP_PHY secondary_phy;
diff --git a/components/bt/host/bluedroid/stack/hcic/hciblecmds.c b/components/bt/host/bluedroid/stack/hcic/hciblecmds.c
index 4369ecc2c8d..8aaab5ea2a5 100644
--- a/components/bt/host/bluedroid/stack/hcic/hciblecmds.c
+++ b/components/bt/host/bluedroid/stack/hcic/hciblecmds.c
@@ -1214,7 +1214,7 @@ UINT8 btsnd_hcic_ble_set_extend_rand_address(UINT8 adv_handle, BD_ADDR rand_addr
 UINT8 btsnd_hcic_ble_set_ext_adv_params(UINT8 adv_handle, UINT16 properties, UINT32 interval_min,
                                           UINT32 interval_max, UINT8 channel_map, UINT8 own_addr_type,
                                           UINT8 peer_addr_type, BD_ADDR peer_addr,
-                                          UINT8 adv_filter_policy, UINT8 adv_tx_power,
+                                          UINT8 adv_filter_policy, INT8 adv_tx_power,
                                           UINT8 primary_adv_phy, UINT8 secondary_adv_max_skip,
                                           UINT8 secondary_adv_phy,
                                           UINT8 adv_sid, UINT8 scan_req_ntf_enable)
@@ -1244,7 +1244,7 @@ UINT8 btsnd_hcic_ble_set_ext_adv_params(UINT8 adv_handle, UINT16 properties, UIN
     UINT8_TO_STREAM(pp, peer_addr_type);
     BDADDR_TO_STREAM (pp, peer_addr);
     UINT8_TO_STREAM(pp, adv_filter_policy);
-    UINT8_TO_STREAM(pp, adv_tx_power);
+    INT8_TO_STREAM(pp, adv_tx_power);
     UINT8_TO_STREAM(pp, primary_adv_phy);
     UINT8_TO_STREAM(pp, secondary_adv_max_skip);
     UINT8_TO_STREAM(pp, secondary_adv_phy);
diff --git a/components/bt/host/bluedroid/stack/include/stack/btm_ble_api.h b/components/bt/host/bluedroid/stack/include/stack/btm_ble_api.h
index f7cac0ecd8b..b20b861a28a 100644
--- a/components/bt/host/bluedroid/stack/include/stack/btm_ble_api.h
+++ b/components/bt/host/bluedroid/stack/include/stack/btm_ble_api.h
@@ -767,7 +767,7 @@ typedef struct {
     tBLE_ADDR_TYPE peer_addr_type;
     BD_ADDR peer_addr;
     tBTM_BLE_AFP filter_policy;
-    UINT8 tx_power;
+    INT8 tx_power;
     tBTM_BLE_GAP_PHY primary_phy;
     UINT8 max_skip;
     tBTM_BLE_GAP_PHY secondary_phy;
diff --git a/components/bt/host/bluedroid/stack/include/stack/hcimsgs.h b/components/bt/host/bluedroid/stack/include/stack/hcimsgs.h
index 0286ae8a8c7..ba5e66e7d9f 100644
--- a/components/bt/host/bluedroid/stack/include/stack/hcimsgs.h
+++ b/components/bt/host/bluedroid/stack/include/stack/hcimsgs.h
@@ -962,7 +962,7 @@ UINT8 btsnd_hcic_ble_set_extend_rand_address(UINT8 adv_handle, BD_ADDR rand_addr
 UINT8 btsnd_hcic_ble_set_ext_adv_params(UINT8 adv_handle, UINT16 properties, UINT32 interval_min,
                                           UINT32 interval_max, UINT8 channel_map, UINT8 own_addr_type,
                                           UINT8 peer_addr_type, BD_ADDR peer_addr,
-                                          UINT8 adv_filter_policy, UINT8 adv_tx_power,
+                                          UINT8 adv_filter_policy, INT8 adv_tx_power,
                                           UINT8 primary_adv_phy, UINT8 secondary_adv_max_skip,
                                           UINT8 secondary_adv_phy,
                                           UINT8 adv_sid, UINT8 scan_req_ntf_enable);
diff --git a/examples/bluetooth/bluedroid/ble_50/ble50_security_server/main/ble50_sec_gatts_demo.c b/examples/bluetooth/bluedroid/ble_50/ble50_security_server/main/ble50_sec_gatts_demo.c
index b7503e7c185..b3ac9f7160e 100644
--- a/examples/bluetooth/bluedroid/ble_50/ble50_security_server/main/ble50_sec_gatts_demo.c
+++ b/examples/bluetooth/bluedroid/ble_50/ble50_security_server/main/ble50_sec_gatts_demo.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Unlicense OR CC0-1.0
  */
@@ -55,6 +55,7 @@ esp_ble_gap_ext_adv_params_t ext_adv_params_2M = {
     .sid = 0,
     .scan_req_notif = false,
     .own_addr_type = BLE_ADDR_TYPE_PUBLIC,
+    .tx_power = EXT_ADV_TX_PWR_NO_PREFERENCE,
 };
 
 struct gatts_profile_inst {
diff --git a/examples/bluetooth/bluedroid/ble_50/multi-adv/main/multi_adv_demo.c b/examples/bluetooth/bluedroid/ble_50/multi-adv/main/multi_adv_demo.c
index 8cb211a0986..42e75b09cbe 100644
--- a/examples/bluetooth/bluedroid/ble_50/multi-adv/main/multi_adv_demo.c
+++ b/examples/bluetooth/bluedroid/ble_50/multi-adv/main/multi_adv_demo.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Unlicense OR CC0-1.0
  */
@@ -64,6 +64,7 @@ esp_ble_gap_ext_adv_params_t ext_adv_params_1M = {
     .sid = 0,
     .scan_req_notif = false,
     .own_addr_type = BLE_ADDR_TYPE_RANDOM,
+    .tx_power = EXT_ADV_TX_PWR_NO_PREFERENCE,
 };
 
 esp_ble_gap_ext_adv_params_t ext_adv_params_2M = {
@@ -78,6 +79,7 @@ esp_ble_gap_ext_adv_params_t ext_adv_params_2M = {
     .sid = 1,
     .scan_req_notif = false,
     .own_addr_type = BLE_ADDR_TYPE_RANDOM,
+    .tx_power = EXT_ADV_TX_PWR_NO_PREFERENCE,
 };
 
 esp_ble_gap_ext_adv_params_t legacy_adv_params = {
@@ -92,6 +94,7 @@ esp_ble_gap_ext_adv_params_t legacy_adv_params = {
     .sid = 2,
     .scan_req_notif = false,
     .own_addr_type = BLE_ADDR_TYPE_RANDOM,
+    .tx_power = EXT_ADV_TX_PWR_NO_PREFERENCE,
 };
 
 esp_ble_gap_ext_adv_params_t ext_adv_params_coded = {
@@ -106,6 +109,7 @@ esp_ble_gap_ext_adv_params_t ext_adv_params_coded = {
     .sid = 3,
     .scan_req_notif = false,
     .own_addr_type = BLE_ADDR_TYPE_RANDOM,
+    .tx_power = EXT_ADV_TX_PWR_NO_PREFERENCE,
 };
 
 static uint8_t raw_adv_data_1m[] = {
diff --git a/examples/bluetooth/bluedroid/ble_50/peroidic_adv/main/periodic_adv_demo.c b/examples/bluetooth/bluedroid/ble_50/peroidic_adv/main/periodic_adv_demo.c
index 7adb5fa67ed..60f497e7191 100644
--- a/examples/bluetooth/bluedroid/ble_50/peroidic_adv/main/periodic_adv_demo.c
+++ b/examples/bluetooth/bluedroid/ble_50/peroidic_adv/main/periodic_adv_demo.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Unlicense OR CC0-1.0
  */
@@ -65,6 +65,7 @@ esp_ble_gap_ext_adv_params_t ext_adv_params_2M = {
     .sid = 0,
     .scan_req_notif = false,
     .own_addr_type = BLE_ADDR_TYPE_RANDOM,
+    .tx_power = EXT_ADV_TX_PWR_NO_PREFERENCE,
 };
 
 static esp_ble_gap_periodic_adv_params_t periodic_adv_params = {