diff --git a/components/esp_wifi/include/esp_wifi.h b/components/esp_wifi/include/esp_wifi.h
index ea0f2563ee..4addf9dd17 100644
--- a/components/esp_wifi/include/esp_wifi.h
+++ b/components/esp_wifi/include/esp_wifi.h
@@ -590,6 +590,8 @@ esp_err_t esp_wifi_get_bandwidth(wifi_interface_t ifx, wifi_bandwidth_t *bw);
   * @attention 2. When ESP32 is in STA mode, this API should not be called when STA is scanning or connecting to an external AP
   * @attention 3. When ESP32 is in softAP mode, this API should not be called when softAP has connected to external STAs
   * @attention 4. When ESP32 is in STA+softAP mode, this API should not be called when in the scenarios described above
+  * @attention 5. The channel info set by this API will not be stored in NVS. So If you want to remeber the channel used before wifi stop,
+  *               you need to call this API again after wifi start, or you can call `esp_wifi_set_config()` to store the channel info in NVS.
   *
   * @param     primary  for HT20, primary is the channel number, for HT40, primary is the primary channel
   * @param     second   for HT20, second is ignored, for HT40, second is the second channel
@@ -799,6 +801,7 @@ esp_err_t esp_wifi_get_promiscuous_ctrl_filter(wifi_promiscuous_filter_t *filter
   * @attention 2. For station configuration, bssid_set needs to be 0; and it needs to be 1 only when users need to check the MAC address of the AP.
   * @attention 3. ESP32 is limited to only one channel, so when in the soft-AP+station mode, the soft-AP will adjust its channel automatically to be the same as
   *               the channel of the ESP32 station.
+  * @attention 4. The configuration will be stored in NVS
   *
   * @param     interface  interface
   * @param     conf  station or soft-AP configuration
diff --git a/docs/en/api-guides/wifi.rst b/docs/en/api-guides/wifi.rst
index 3ea55d9a0c..edced0e1cf 100644
--- a/docs/en/api-guides/wifi.rst
+++ b/docs/en/api-guides/wifi.rst
@@ -1177,7 +1177,7 @@ Call :cpp:func:`esp_wifi_set_mode()` to set the Wi-Fi mode.
 Station Basic Configuration
 +++++++++++++++++++++++++++++++++++++
 
-API esp_wifi_set_config() can be used to configure the station. The table below describes the fields in detail.
+API :cpp:func:`esp_wifi_set_config()` can be used to configure the station. And the configuration will be stored in NVS. The table below describes the fields in detail.
 
 .. list-table::
    :header-rows: 1
@@ -1214,7 +1214,7 @@ API esp_wifi_set_config() can be used to configure the station. The table below
 AP Basic Configuration
 +++++++++++++++++++++++++++++++++++++
 
-API esp_wifi_set_config() can be used to configure the AP. The table below describes the fields in detail.
+API :cpp:func:`esp_wifi_set_config()` can be used to configure the AP. And the configuration will be stored in NVS. The table below describes the fields in detail.
 
 .. list-table::
    :header-rows: 1
diff --git a/docs/zh_CN/api-guides/wifi.rst b/docs/zh_CN/api-guides/wifi.rst
index 914f95ac3d..84dccaa421 100644
--- a/docs/zh_CN/api-guides/wifi.rst
+++ b/docs/zh_CN/api-guides/wifi.rst
@@ -1177,7 +1177,7 @@ Wi-Fi 模式
 Station 基本配置
 +++++++++++++++++++++++++++++++++++++
 
-API esp_wifi_set_config() 可用于配置 station。下表详细介绍了各个字段。
+API :cpp:func:`esp_wifi_set_config()` 可用于配置 station。配置的参数信息会保存到 NVS 中。下表详细介绍了各个字段。
 
 .. list-table::
    :header-rows: 1
@@ -1214,7 +1214,7 @@ API esp_wifi_set_config() 可用于配置 station。下表详细介绍了各个
 AP 基本配置
 +++++++++++++++++++++++++++++++++++++
 
-API esp_wifi_set_config() 可用于配置 AP。下表详细介绍了各个字段。
+API :cpp:func:`esp_wifi_set_config()` 可用于配置 AP。配置的参数信息会保存到 NVS 中。下表详细介绍了各个字段。
 
 .. list-table::
    :header-rows: 1