diff --git a/src/utils/http/core.ts b/src/utils/http/core.ts
index 86d757197..3d3413767 100644
--- a/src/utils/http/core.ts
+++ b/src/utils/http/core.ts
@@ -128,7 +128,6 @@ class EnclosureHttp {
         // 优先判断post/get等方法是否传入回掉，否则执行初始化设置等回掉
         if (typeof this.beforeRequestCallback === "function") {
           this.beforeRequestCallback($config);
-          this.beforeRequestCallback = undefined;
           return $config;
         }
         if (EnclosureHttp.initConfig.beforeRequestCallback) {