diff --git a/src/platforms/mp-alipay/runtime/api/index.js b/src/platforms/mp-alipay/runtime/api/index.js
index fa81afc0816e51d39080dc91c59b68457b602983..d55421ec1e4239d15945e24e8d87b529eed04944 100644
--- a/src/platforms/mp-alipay/runtime/api/index.js
+++ b/src/platforms/mp-alipay/runtime/api/index.js
@@ -88,6 +88,12 @@ export function createSelectorQuery () {
       return this
     }
   }
+
+  if (!query.in) {
+    query.in = function () {
+      return this
+    }
+  }
   return query
 }