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 3e06258835..1ff98fa635 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
@@ -1179,13 +1179,13 @@ typedef union {
     struct ble_update_conn_params_evt_param {
         esp_bt_status_t status;                    /*!< Indicate update connection parameters success status */
         esp_bd_addr_t bda;                         /*!< Bluetooth device address */
-        uint16_t min_int;                          /*!< Min connection interval */
-        uint16_t max_int;                          /*!< Max connection interval */
+        uint16_t min_int;                          /*!< Minimum connection interval. If the master initiates the connection parameter update, this value is not applicable for the slave and will be set to zero. */
+        uint16_t max_int;                          /*!< Maximum connection interval. If the master initiates the connection parameter update, this value is not applicable for the slave and will be set to zero. */
         uint16_t latency;                          /*!< Slave latency for the connection in number of connection events. Range: 0x0000 to 0x01F3 */
-        uint16_t conn_int;                         /*!< Current connection interval */
+        uint16_t conn_int;                         /*!< Current connection interval in milliseconds, calculated as N × 1.25 ms */
         uint16_t timeout;                          /*!< Supervision timeout for the LE Link. Range: 0x000A to 0x0C80.
-                                                     Mandatory Range: 0x000A to 0x0C80 Time = N * 10 msec */
-    } update_conn_params;                          /*!< Event parameter of ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT */
+                                                    This value is calculated as N × 10 ms */
+    } update_conn_params;                          /*!< Event parameter for ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT */
     /**
      * @brief ESP_GAP_BLE_SET_PKT_LENGTH_COMPLETE_EVT
      */
diff --git a/examples/bluetooth/bluedroid/ble/ble_compatibility_test/main/ble_compatibility_test.c b/examples/bluetooth/bluedroid/ble/ble_compatibility_test/main/ble_compatibility_test.c
index 6881b419e5..f7ea62e197 100644
--- a/examples/bluetooth/bluedroid/ble/ble_compatibility_test/main/ble_compatibility_test.c
+++ b/examples/bluetooth/bluedroid/ble/ble_compatibility_test/main/ble_compatibility_test.c
@@ -338,10 +338,8 @@ static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param
             }
             break;
         case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-            EXAMPLE_DEBUG(EXAMPLE_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
+            EXAMPLE_DEBUG(EXAMPLE_TAG, "update connection params status = %d, conn_int = %d, latency = %d, timeout = %d",
                   param->update_conn_params.status,
-                  param->update_conn_params.min_int,
-                  param->update_conn_params.max_int,
                   param->update_conn_params.conn_int,
                   param->update_conn_params.latency,
                   param->update_conn_params.timeout);
diff --git a/examples/bluetooth/bluedroid/ble/ble_throughput/throughput_client/main/example_ble_client_throughput.c b/examples/bluetooth/bluedroid/ble/ble_throughput/throughput_client/main/example_ble_client_throughput.c
index d2bb02f2a8..ecc43893a9 100644
--- a/examples/bluetooth/bluedroid/ble/ble_throughput/throughput_client/main/example_ble_client_throughput.c
+++ b/examples/bluetooth/bluedroid/ble/ble_throughput/throughput_client/main/example_ble_client_throughput.c
@@ -442,10 +442,8 @@ static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *par
         ESP_LOGI(GATTC_TAG, "stop adv successfully");
         break;
     case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-         ESP_LOGI(GATTC_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
+         ESP_LOGI(GATTC_TAG, "update connection params status = %d, conn_int = %d, latency = %d, timeout = %d",
                   param->update_conn_params.status,
-                  param->update_conn_params.min_int,
-                  param->update_conn_params.max_int,
                   param->update_conn_params.conn_int,
                   param->update_conn_params.latency,
                   param->update_conn_params.timeout);
diff --git a/examples/bluetooth/bluedroid/ble/ble_throughput/throughput_server/main/example_ble_server_throughput.c b/examples/bluetooth/bluedroid/ble/ble_throughput/throughput_server/main/example_ble_server_throughput.c
index 64639f7701..86ed21d4b5 100644
--- a/examples/bluetooth/bluedroid/ble/ble_throughput/throughput_server/main/example_ble_server_throughput.c
+++ b/examples/bluetooth/bluedroid/ble/ble_throughput/throughput_server/main/example_ble_server_throughput.c
@@ -264,10 +264,8 @@ static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param
         }
         break;
     case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-         ESP_LOGI(GATTS_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
+         ESP_LOGI(GATTS_TAG, "update connection params status = %d, conn_int = %d, latency = %d, timeout = %d",
                   param->update_conn_params.status,
-                  param->update_conn_params.min_int,
-                  param->update_conn_params.max_int,
                   param->update_conn_params.conn_int,
                   param->update_conn_params.latency,
                   param->update_conn_params.timeout);
diff --git a/examples/bluetooth/bluedroid/ble/gatt_client/main/gattc_demo.c b/examples/bluetooth/bluedroid/ble/gatt_client/main/gattc_demo.c
index a4928f4ae9..65e2fa0f34 100644
--- a/examples/bluetooth/bluedroid/ble/gatt_client/main/gattc_demo.c
+++ b/examples/bluetooth/bluedroid/ble/gatt_client/main/gattc_demo.c
@@ -402,10 +402,8 @@ static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *par
         ESP_LOGI(GATTC_TAG, "stop adv successfully");
         break;
     case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-         ESP_LOGI(GATTC_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
+         ESP_LOGI(GATTC_TAG, "update connection params status = %d, conn_int = %d, latency = %d, timeout = %d",
                   param->update_conn_params.status,
-                  param->update_conn_params.min_int,
-                  param->update_conn_params.max_int,
                   param->update_conn_params.conn_int,
                   param->update_conn_params.latency,
                   param->update_conn_params.timeout);
diff --git a/examples/bluetooth/bluedroid/ble/gatt_server/main/gatts_demo.c b/examples/bluetooth/bluedroid/ble/gatt_server/main/gatts_demo.c
index a850f175ba..a160358269 100644
--- a/examples/bluetooth/bluedroid/ble/gatt_server/main/gatts_demo.c
+++ b/examples/bluetooth/bluedroid/ble/gatt_server/main/gatts_demo.c
@@ -227,10 +227,8 @@ static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param
         }
         break;
     case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-         ESP_LOGI(GATTS_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
+         ESP_LOGI(GATTS_TAG, "update connection params status = %d, conn_int = %d, latency = %d, timeout = %d",
                   param->update_conn_params.status,
-                  param->update_conn_params.min_int,
-                  param->update_conn_params.max_int,
                   param->update_conn_params.conn_int,
                   param->update_conn_params.latency,
                   param->update_conn_params.timeout);
diff --git a/examples/bluetooth/bluedroid/ble/gatt_server/tutorial/Gatt_Server_Example_Walkthrough.md b/examples/bluetooth/bluedroid/ble/gatt_server/tutorial/Gatt_Server_Example_Walkthrough.md
index 962960ca82..080fbce432 100644
--- a/examples/bluetooth/bluedroid/ble/gatt_server/tutorial/Gatt_Server_Example_Walkthrough.md
+++ b/examples/bluetooth/bluedroid/ble/gatt_server/tutorial/Gatt_Server_Example_Walkthrough.md
@@ -649,11 +649,8 @@ The `esp_ble_gap_update_conn_params()` function triggers a GAP event `ESP_GAP_BL
 
 ```c
     case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-         ESP_LOGI(GATTS_TAG, "update connection params status = %d, min_int = %d, max_int = %d,
-                  conn_int = %d,latency = %d, timeout = %d",
+         ESP_LOGI(GATTS_TAG, "update connection params status = %d, conn_int = %d,latency = %d, timeout = %d",
                   param->update_conn_params.status,
-                  param->update_conn_params.min_int,
-                  param->update_conn_params.max_int,
                   param->update_conn_params.conn_int,
                   param->update_conn_params.latency,
                   param->update_conn_params.timeout);
diff --git a/examples/bluetooth/bluedroid/ble/gatt_server_service_table/main/gatts_table_creat_demo.c b/examples/bluetooth/bluedroid/ble/gatt_server_service_table/main/gatts_table_creat_demo.c
index 44bea82d67..c8a00bfa1c 100644
--- a/examples/bluetooth/bluedroid/ble/gatt_server_service_table/main/gatts_table_creat_demo.c
+++ b/examples/bluetooth/bluedroid/ble/gatt_server_service_table/main/gatts_table_creat_demo.c
@@ -265,10 +265,8 @@ static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param
             }
             break;
         case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-            ESP_LOGI(GATTS_TABLE_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
+            ESP_LOGI(GATTS_TABLE_TAG, "update connection params status = %d, conn_int = %d, latency = %d, timeout = %d",
                   param->update_conn_params.status,
-                  param->update_conn_params.min_int,
-                  param->update_conn_params.max_int,
                   param->update_conn_params.conn_int,
                   param->update_conn_params.latency,
                   param->update_conn_params.timeout);
diff --git a/examples/bluetooth/bluedroid/ble/gattc_multi_connect/main/gattc_multi_connect.c b/examples/bluetooth/bluedroid/ble/gattc_multi_connect/main/gattc_multi_connect.c
index 3b6755e35c..c39245241a 100644
--- a/examples/bluetooth/bluedroid/ble/gattc_multi_connect/main/gattc_multi_connect.c
+++ b/examples/bluetooth/bluedroid/ble/gattc_multi_connect/main/gattc_multi_connect.c
@@ -768,10 +768,8 @@ static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *par
     uint8_t adv_name_len = 0;
     switch (event) {
     case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-         ESP_LOGI(GATTC_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
+         ESP_LOGI(GATTC_TAG, "update connection params status = %d, conn_int = %d, latency = %d, timeout = %d",
                   param->update_conn_params.status,
-                  param->update_conn_params.min_int,
-                  param->update_conn_params.max_int,
                   param->update_conn_params.conn_int,
                   param->update_conn_params.latency,
                   param->update_conn_params.timeout);
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 1de2959cf1..dacc8f1636 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
@@ -352,10 +352,8 @@ static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param
         esp_ble_gap_ext_adv_set_params(EXT_ADV_HANDLE, &ext_adv_params_2M);
         break;
     case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-         ESP_LOGI(GATTS_TABLE_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
+         ESP_LOGI(GATTS_TABLE_TAG, "update connection params status = %d, conn_int = %d, latency = %d, timeout = %d",
                   param->update_conn_params.status,
-                  param->update_conn_params.min_int,
-                  param->update_conn_params.max_int,
                   param->update_conn_params.conn_int,
                   param->update_conn_params.latency,
                   param->update_conn_params.timeout);
diff --git a/examples/bluetooth/bluedroid/coex/a2dp_gatts_coex/main/main.c b/examples/bluetooth/bluedroid/coex/a2dp_gatts_coex/main/main.c
index 7351beb0ac..9aad1a2e59 100644
--- a/examples/bluetooth/bluedroid/coex/a2dp_gatts_coex/main/main.c
+++ b/examples/bluetooth/bluedroid/coex/a2dp_gatts_coex/main/main.c
@@ -181,10 +181,8 @@ static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param
         }
         break;
     case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-         ESP_LOGI(BT_BLE_COEX_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
+         ESP_LOGI(BT_BLE_COEX_TAG, "update connection params status = %d, conn_int = %d, latency = %d, timeout = %d",
                   param->update_conn_params.status,
-                  param->update_conn_params.min_int,
-                  param->update_conn_params.max_int,
                   param->update_conn_params.conn_int,
                   param->update_conn_params.latency,
                   param->update_conn_params.timeout);
diff --git a/examples/bluetooth/bluedroid/coex/gattc_gatts_coex/main/gattc_gatts_coex.c b/examples/bluetooth/bluedroid/coex/gattc_gatts_coex/main/gattc_gatts_coex.c
index e56d8c7ddd..85962e28d8 100644
--- a/examples/bluetooth/bluedroid/coex/gattc_gatts_coex/main/gattc_gatts_coex.c
+++ b/examples/bluetooth/bluedroid/coex/gattc_gatts_coex/main/gattc_gatts_coex.c
@@ -246,10 +246,8 @@ static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param
         }
         break;
     case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-        ESP_LOGI(COEX_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
+        ESP_LOGI(COEX_TAG, "update connection params status = %d, conn_int = %d, latency = %d, timeout = %d",
                  param->update_conn_params.status,
-                 param->update_conn_params.min_int,
-                 param->update_conn_params.max_int,
                  param->update_conn_params.conn_int,
                  param->update_conn_params.latency,
                  param->update_conn_params.timeout);
diff --git a/examples/system/ota/advanced_https_ota/main/ble_helper/bluedroid_gatts.c b/examples/system/ota/advanced_https_ota/main/ble_helper/bluedroid_gatts.c
index c2d143b6fa..a517597207 100644
--- a/examples/system/ota/advanced_https_ota/main/ble_helper/bluedroid_gatts.c
+++ b/examples/system/ota/advanced_https_ota/main/ble_helper/bluedroid_gatts.c
@@ -376,10 +376,8 @@ void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *par
         }
         break;
     case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
-        ESP_LOGI(TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
+        ESP_LOGI(TAG, "update connection params status = %d, conn_int = %d, latency = %d, timeout = %d",
                  param->update_conn_params.status,
-                 param->update_conn_params.min_int,
-                 param->update_conn_params.max_int,
                  param->update_conn_params.conn_int,
                  param->update_conn_params.latency,
                  param->update_conn_params.timeout);