diff --git a/components/openthread/include/esp_openthread_netif_glue.h b/components/openthread/include/esp_openthread_netif_glue.h
index b71d29d24a..c386cfd6c5 100644
--- a/components/openthread/include/esp_openthread_netif_glue.h
+++ b/components/openthread/include/esp_openthread_netif_glue.h
@@ -76,6 +76,17 @@ esp_netif_t *esp_openthread_get_netif(void);
  */
 void esp_openthread_register_meshcop_e_handler(esp_event_handler_t handler, bool for_publish);
 
+/**
+ * @brief This function judges the target address is openthread mesh local or not.
+ *
+ * @param[in]    address   The address.
+ *
+ * @return
+ *      - True if the address is openthread mesh local, otherwise false
+ *
+ */
+bool is_openthread_internal_mesh_local_addr(const otIp6Address *address);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/components/openthread/lib b/components/openthread/lib
index fff1e900a1..8f3bd568ba 160000
--- a/components/openthread/lib
+++ b/components/openthread/lib
@@ -1 +1 @@
-Subproject commit fff1e900a1169e76ea06246100f81d005d5f7f44
+Subproject commit 8f3bd568ba77a5194e501b849966bc0ea16a8aff
diff --git a/components/openthread/private_include/esp_openthread_netif_glue_priv.h b/components/openthread/private_include/esp_openthread_netif_glue_priv.h
index d5a9d1c072..ceebe3db4d 100644
--- a/components/openthread/private_include/esp_openthread_netif_glue_priv.h
+++ b/components/openthread/private_include/esp_openthread_netif_glue_priv.h
@@ -36,17 +36,6 @@ void esp_openthread_netif_glue_update(esp_openthread_mainloop_context_t *mainloo
  */
 esp_err_t esp_openthread_netif_glue_process(otInstance *instance, const esp_openthread_mainloop_context_t *mainloop);
 
-/**
- * @brief This function judges the target address is openthread mesh local or not.
- *
- * @param[in]    address   The address.
- *
- * @return
- *      - True if the address is openthread mesh local, otherwise false
- *
- */
-bool is_openthread_internal_mesh_local_addr(const otIp6Address *address);
-
 #ifdef __cplusplus
 }
 #endif