diff --git a/package.json b/package.json
index d26d208..63276e8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wkitd",
-  "version": "1.1.1",
+  "version": "1.1.2",
   "type": "module",
   "main": "dist/index.js",
   "files": [
diff --git a/src/store.js b/src/store.js
index 3c4630e..1929c08 100644
--- a/src/store.js
+++ b/src/store.js
@@ -7,6 +7,28 @@
 import { Component } from 'wkit'
 import { __STORE__ } from './constants.js'
 
+function observe(obj) {
+  if (obj === null) {
+    return obj
+  }
+
+  return new Proxy(obj, {
+    get(target, key, receiver) {
+      let value = Reflect.get(target, key, receiver)
+      // 当访问的值是对象时，需要对这个对象也进行代理
+      if (typeof value === 'object') {
+        return observe(value)
+      }
+      return value
+    },
+    set(target, key, value, receiver) {
+      Reflect.set(target, key, value, receiver)
+      window.wkitd.broadcast()
+      return true
+    }
+  })
+}
+
 export function createStore(obj = {}) {
   let defined = false
 
@@ -21,16 +43,7 @@ export function createStore(obj = {}) {
             'Can not set readonly property $store of Component'
           )
         }
-        window.wkitd.set(
-          __STORE__,
-          new Proxy(val, {
-            set(target, prop, value) {
-              target[prop] = value
-              window.wkitd.broadcast()
-              return true
-            }
-          })
-        )
+        window.wkitd.set(__STORE__, observe(val))
         defined = true
       },
       enumerable: false