diff --git a/electron/electron.js b/electron/electron.js
index c1c3f08d1..902571445 100644
--- a/electron/electron.js
+++ b/electron/electron.js
@@ -1208,6 +1208,16 @@ ipcMain.on('childWindowDestroyAll', (event) => {
     event.returnValue = "ok"
 })
 
+/**
+ * 刷新预加载窗口（用于更换语言和主题时触发）
+ */
+ipcMain.on('reloadPreloadWindow', (event) => {
+    if (preloadWindow) {
+        preloadWindow.webContents.reload()
+    }
+    event.returnValue = "ok"
+})
+
 /**
  * 设置窗口尺寸
  * @param args {width, height, autoZoom, minWidth, minHeight, maxWidth, maxHeight}
diff --git a/resources/assets/js/language/index.js b/resources/assets/js/language/index.js
index 7019e5f8d..b065dd704 100644
--- a/resources/assets/js/language/index.js
+++ b/resources/assets/js/language/index.js
@@ -96,6 +96,7 @@ function setLanguage(language, silence = false) {
         utils.saveLanguage(language);
         (async () => {
             await $A.IDBDel("callAt")
+            $A.Electron?.sendMessage('reloadPreloadWindow');
             $A.reloadUrl()
         })()
     } else {
diff --git a/resources/assets/js/pages/manage/setting/theme.vue b/resources/assets/js/pages/manage/setting/theme.vue
index 78b15f70c..0a7bdcd4e 100644
--- a/resources/assets/js/pages/manage/setting/theme.vue
+++ b/resources/assets/js/pages/manage/setting/theme.vue
@@ -52,7 +52,11 @@ export default {
             this.$refs.formData.validate((valid) => {
                 if (valid) {
                     this.$store.dispatch("setTheme", this.formData.theme).then(res => {
-                        res && $A.messageSuccess('保存成功');
+                        if (!res) {
+                            return
+                        }
+                        $A.messageSuccess('保存成功');
+                        this.$Electron?.sendMessage('reloadPreloadWindow');
                     })
                 }
             })