diff --git a/components.js b/components.js
index c0c25f949..e00d27f28 100644
--- a/components.js
+++ b/components.js
@@ -31,4 +31,5 @@ module.exports = [
   'pagination',
   'sidebar',
   'tree-select',
+  'notice-bar',
 ];
diff --git a/src/notice-bar/index.js b/src/notice-bar/index.js
index 83db62c64..945f80586 100644
--- a/src/notice-bar/index.js
+++ b/src/notice-bar/index.js
@@ -37,9 +37,13 @@ export default createComponent({
   },
 
   watch: {
-    scrollable: 'start',
+    scrollable() {
+      this.start();
+    },
     text: {
-      handler: 'start',
+      handler() {
+        this.start();
+      },
       immediate: true,
     },
   },
@@ -105,7 +109,8 @@ export default createComponent({
   },
 
   render() {
-    const { slots, mode, leftIcon, onClickIcon } = this;
+    const slots = this.$slots;
+    const { mode, leftIcon, onClickIcon } = this;
 
     const barStyle = {
       color: this.color,
@@ -118,10 +123,8 @@ export default createComponent({
     };
 
     function LeftIcon() {
-      const slot = slots('left-icon');
-
-      if (slot) {
-        return slot;
+      if (slots['left-icon']) {
+        return slots['left-icon']();
       }
 
       if (leftIcon) {
@@ -130,10 +133,8 @@ export default createComponent({
     }
 
     function RightIcon() {
-      const slot = slots('right-icon');
-
-      if (slot) {
-        return slot;
+      if (slots['right-icon']) {
+        return slots['right-icon']();
       }
 
       let iconName;
@@ -175,7 +176,7 @@ export default createComponent({
             style={contentStyle}
             onTransitionend={this.onTransitionEnd}
           >
-            {this.slots() || this.text}
+            {slots.default?.() || this.text}
           </div>
         </div>
         {RightIcon()}
diff --git a/vant.config.js b/vant.config.js
index 23801ec26..b9f626054 100644
--- a/vant.config.js
+++ b/vant.config.js
@@ -253,10 +253,10 @@ module.exports = {
               //   path: 'list',
               //   title: 'List 列表',
               // },
-              // {
-              //   path: 'notice-bar',
-              //   title: 'NoticeBar 通知栏',
-              // },
+              {
+                path: 'notice-bar',
+                title: 'NoticeBar 通知栏',
+              },
               {
                 path: 'progress',
                 title: 'Progress 进度条',
@@ -587,10 +587,10 @@ module.exports = {
               //   path: 'list',
               //   title: 'List',
               // },
-              // {
-              //   path: 'notice-bar',
-              //   title: 'NoticeBar',
-              // },
+              {
+                path: 'notice-bar',
+                title: 'NoticeBar',
+              },
               {
                 path: 'progress',
                 title: 'Progress',