diff --git a/packages/core/src/components/zhs/StudySettingPanel.tsx b/packages/core/src/components/zhs/StudySettingPanel.tsx
index da820f0e..59857ea7 100644
--- a/packages/core/src/components/zhs/StudySettingPanel.tsx
+++ b/packages/core/src/components/zhs/StudySettingPanel.tsx
@@ -1,6 +1,6 @@
-import { defineComponent } from 'vue';
+import { defineComponent, ref } from 'vue';
 import { store } from '../../script';
-import { autoClose } from '../../script/zhs/study';
+import { autoClose, switchPlaybackRate } from '../../script/zhs/study';
 import { Tooltip } from '../Tooltip';
 
 export const StudySettingPanel = defineComponent({
@@ -10,6 +10,9 @@ export const StudySettingPanel = defineComponent({
     closeDate.setMinutes(closeDate.getMinutes() + settings.watchTime * 60);
     settings.closeDate = closeDate;
 
+    // 切换倍速防抖
+    const switching = ref(false);
+
     return () => (
       <div class="ocs-setting-panel">
         <div class="ocs-setting-items">
@@ -55,8 +58,10 @@ export const StudySettingPanel = defineComponent({
                   <label>视频倍速 </label>
                   <div>
                     <Tooltip title="学分课不允许倍速！">
-                      <input type="number"
-                      value="1">
+                      <input
+                        type="number"
+                        value="1"
+                      >
                       </input>
                     </Tooltip>
                   </div>
@@ -70,8 +75,12 @@ export const StudySettingPanel = defineComponent({
                       max="1.5"
                       min="1"
                       value={settings.playbackRate}
-                      onChange={(e: any) => {
+                      disabled={switching.value}
+                      onChange={async (e:any) => {
+                        switching.value = true;
                         settings.playbackRate = e.target.valueAsNumber;
+                        await switchPlaybackRate(settings.playbackRate);
+                        switching.value = false;
                       }}></input>
                     </Tooltip>
                   </div>
diff --git a/packages/core/src/script/zhs/study.ts b/packages/core/src/script/zhs/study.ts
index 65abbebb..a8b3c41c 100644
--- a/packages/core/src/script/zhs/study.ts
+++ b/packages/core/src/script/zhs/study.ts
@@ -66,7 +66,7 @@ export async function study(setting?: ScriptSettings['zhs']['video']) {
  * @returns
  */
 export async function watch(setting?: Pick<ScriptSettings['zhs']['video'], 'playbackRate' | 'volume'>) {
-  const { volume = 0, playbackRate } = setting || {};
+  const { volume = 0, playbackRate = 1 } = setting || {};
   return new Promise<void>((resolve, reject) => {
     try {
       const video = document.querySelector('video') as HTMLVideoElement;
@@ -82,12 +82,7 @@ export async function watch(setting?: Pick<ScriptSettings['zhs']['video'], 'play
 
         video.play();
 
-        await sleep(1000);
-        const { btn, rate } = domSearch({ btn: '.speedBox', rate: `[rate="${playbackRate}"]` });
-        console.log({ btn, rate });
-        btn?.click();
-        await sleep(1000);
-        rate?.click();
+        await switchPlaybackRate(playbackRate);
 
         video.onpause = function () {
           if (!video.ended) {
@@ -112,6 +107,19 @@ export async function watch(setting?: Pick<ScriptSettings['zhs']['video'], 'play
   });
 }
 
+/**
+ * 切换播放速度
+ * @param playbackRate 播放速度
+ */
+export async function switchPlaybackRate(playbackRate: number) {
+  await sleep(500);
+  const { btn } = domSearch({ btn: '.speedBox' });
+  btn?.click();
+  await sleep(500);
+  const { rate } = domSearch({ rate: `[rate="${playbackRate === 1 ? '1.0' : playbackRate}"]` });
+  rate?.click();
+}
+
 /**
  * 关闭zhs共享课测验弹窗
  */