diff --git a/src/utils/inject.js b/src/utils/inject.js
index dc146ea..6c3b616 100644
--- a/src/utils/inject.js
+++ b/src/utils/inject.js
@@ -146,12 +146,13 @@ Vue.component("scrollTable", {
   },
   methods: {
     initScroll() {
-      const {SimpleBar} = window
-      const dom = this.$el.querySelector('.el-table__body-wrapper')
-      this.scroll = new SimpleBar(dom)
-      dom.addEventListener('mouseover', this.stopAutoScroll)
-      // dom.addEventListener('mouseout', this.autoScroll)
-      // this.scroll.refresh();
+      const {SimpleBar, $waitFor} = window
+      $waitFor(this.$el.querySelector('.el-table__body-wrapper')).then(dom => {
+        this.scroll = new SimpleBar(dom)
+        dom.addEventListener('mouseover', this.stopAutoScroll)
+        // dom.addEventListener('mouseout', this.autoScroll)
+        // this.scroll.refresh();
+      })
     },
     autoScroll() {
       if (this.timer) clearInterval(this.timer)
@@ -165,7 +166,8 @@ Vue.component("scrollTable", {
       }, 60)
     },
     stopAutoScroll() {
-      this.$el.querySelector('.simplebar-vertical').style.display = 'block'
+      const {$waitFor} = window
+      $waitFor(this.$el.querySelector('.simplebar-vertical')).then(dom => dom.style.display = 'block')
       if (this.timer) clearInterval(this.timer)
     }
   },