diff --git a/packages/taro-swan/src/create-component.js b/packages/taro-swan/src/create-component.js
index 4e29a2605b19..8a2f9de6f02b 100644
--- a/packages/taro-swan/src/create-component.js
+++ b/packages/taro-swan/src/create-component.js
@@ -17,7 +17,7 @@ function bindProperties (weappComponentConf, ComponentClass) {
     if (defaultProps.hasOwnProperty(key)) {
       weappComponentConf.properties[key] = {
         type: null,
-        value: null
+        value: defaultProps[key]
       }
     }
   }
diff --git a/packages/taro-tt/src/create-component.js b/packages/taro-tt/src/create-component.js
index 4d51e7b44e92..d304ae6e8df0 100644
--- a/packages/taro-tt/src/create-component.js
+++ b/packages/taro-tt/src/create-component.js
@@ -17,7 +17,7 @@ function bindProperties (weappComponentConf, ComponentClass) {
     if (defaultProps.hasOwnProperty(key)) {
       weappComponentConf.properties[key] = {
         type: null,
-        value: null
+        value: defaultProps[key]
       }
     }
   }