diff --git a/src/base/assets_manager.c b/src/base/assets_manager.c
index 31a80a618..7eae5c90f 100644
--- a/src/base/assets_manager.c
+++ b/src/base/assets_manager.c
@@ -544,6 +544,11 @@ asset_info_t* assets_manager_load_ex(assets_manager_t* am, asset_type_t type, ui
     return am->custom_load_asset(am->custom_load_asset_ctx, type, subtype, name);
   }
   info = assets_manager_load_impl(am, type, subtype, name);
+  
+  if (info == NULL && am->fallback_load_asset != NULL) {
+    info = am->fallback_load_asset(am->fallback_load_asset_ctx, type, subtype, name);
+  }
+
   if (info != NULL) {
     assets_manager_dispatch_event(am, EVT_ASSET_MANAGER_LOAD_ASSET, info);
   }
@@ -832,6 +837,16 @@ ret_t assets_manager_set_custom_load_asset(assets_manager_t* am,
   return RET_OK;
 }
 
+ret_t assets_manager_set_fallback_load_asset(assets_manager_t* am,
+                                           assets_manager_load_asset_t fallback_load_asset,
+                                           void* ctx) {
+  return_value_if_fail(am != NULL, RET_BAD_PARAMS);
+  am->fallback_load_asset_ctx = ctx;
+  am->fallback_load_asset = fallback_load_asset;
+
+  return RET_OK;
+}
+
 ret_t assets_manager_destroy(assets_manager_t* am) {
   return_value_if_fail(am != NULL, RET_BAD_PARAMS);
   emitter_deinit(EMITTER(am));
diff --git a/src/base/assets_manager.h b/src/base/assets_manager.h
index 31a01acd6..c5e4bca6b 100644
--- a/src/base/assets_manager.h
+++ b/src/base/assets_manager.h
@@ -84,6 +84,9 @@ struct _assets_manager_t {
 
   void* custom_load_asset_ctx;
   assets_manager_load_asset_t custom_load_asset;
+  
+  void* fallback_load_asset_ctx;
+  assets_manager_load_asset_t fallback_load_asset;
 
   void* custom_build_asset_dir_ctx;
   assets_manager_build_asset_dir_t custom_build_asset_dir;
@@ -331,6 +334,19 @@ ret_t assets_manager_set_custom_load_asset(assets_manager_t* am,
                                            assets_manager_load_asset_t custom_load_asset,
                                            void* ctx);
 
+/**
+ * @method assets_manager_set_fallback_load_asset
+ * 设置一个函数，该函数在找不到资源时加载后补资源。
+ *
+ * @param {assets_manager_t*} am asset manager对象。
+ * @param {assets_manager_load_asset_t} fallback_load_asset 回调函数。
+ * @param {void*} ctx 回调函数的上下文。
+ *
+ * @return {ret_t} 返回RET_OK表示成功，否则表示失败。
+ */
+ret_t assets_manager_set_fallback_load_asset(assets_manager_t* am,
+                                           assets_manager_load_asset_t fallback_load_asset,
+                                           void* ctx);
 /**
  * @method assets_manager_clear_cache
  * 清除指定类型的缓存。