diff --git a/packages/shared/IpcChannel.ts b/packages/shared/IpcChannel.ts
index 32903df6e5..bf1d2236e1 100644
--- a/packages/shared/IpcChannel.ts
+++ b/packages/shared/IpcChannel.ts
@@ -189,6 +189,7 @@ export enum IpcChannel {
   Selection_SetFilterMode = 'selection:set-filter-mode',
   Selection_SetFilterList = 'selection:set-filter-list',
   Selection_SetFollowToolbar = 'selection:set-follow-toolbar',
+  Selection_SetRemeberWinSize = 'selection:set-remeber-win-size',
   Selection_ActionWindowClose = 'selection:action-window-close',
   Selection_ActionWindowMinimize = 'selection:action-window-minimize',
   Selection_ActionWindowPin = 'selection:action-window-pin',
diff --git a/src/main/services/ConfigManager.ts b/src/main/services/ConfigManager.ts
index a51f1a076b..5327aebbf7 100644
--- a/src/main/services/ConfigManager.ts
+++ b/src/main/services/ConfigManager.ts
@@ -20,6 +20,7 @@ export enum ConfigKeys {
   SelectionAssistantEnabled = 'selectionAssistantEnabled',
   SelectionAssistantTriggerMode = 'selectionAssistantTriggerMode',
   SelectionAssistantFollowToolbar = 'selectionAssistantFollowToolbar',
+  SelectionAssistantRemeberWinSize = 'selectionAssistantRemeberWinSize',
   SelectionAssistantFilterMode = 'selectionAssistantFilterMode',
   SelectionAssistantFilterList = 'selectionAssistantFilterList'
 }
@@ -175,6 +176,14 @@ export class ConfigManager {
     this.setAndNotify(ConfigKeys.SelectionAssistantFollowToolbar, value)
   }
 
+  getSelectionAssistantRemeberWinSize(): boolean {
+    return this.get<boolean>(ConfigKeys.SelectionAssistantRemeberWinSize, false)
+  }
+
+  setSelectionAssistantRemeberWinSize(value: boolean) {
+    this.setAndNotify(ConfigKeys.SelectionAssistantRemeberWinSize, value)
+  }
+
   getSelectionAssistantFilterMode(): string {
     return this.get<string>(ConfigKeys.SelectionAssistantFilterMode, 'default')
   }
diff --git a/src/main/services/SelectionService.ts b/src/main/services/SelectionService.ts
index ebe17b3e0e..a191e67799 100644
--- a/src/main/services/SelectionService.ts
+++ b/src/main/services/SelectionService.ts
@@ -60,6 +60,7 @@ export class SelectionService {
 
   private triggerMode = 'selected'
   private isFollowToolbar = true
+  private isRemeberWinSize = false
   private filterMode = 'default'
   private filterList: string[] = []
 
@@ -86,6 +87,11 @@ export class SelectionService {
   private readonly ACTION_WINDOW_WIDTH = 500
   private readonly ACTION_WINDOW_HEIGHT = 400
 
+  private lastActionWindowSize: { width: number; height: number } = {
+    width: this.ACTION_WINDOW_WIDTH,
+    height: this.ACTION_WINDOW_HEIGHT
+  }
+
   private constructor() {
     try {
       if (!SelectionHook) {
@@ -140,6 +146,7 @@ export class SelectionService {
   private initConfig() {
     this.triggerMode = configManager.getSelectionAssistantTriggerMode()
     this.isFollowToolbar = configManager.getSelectionAssistantFollowToolbar()
+    this.isRemeberWinSize = configManager.getSelectionAssistantRemeberWinSize()
     this.filterMode = configManager.getSelectionAssistantFilterMode()
     this.filterList = configManager.getSelectionAssistantFilterList()
 
@@ -154,6 +161,17 @@ export class SelectionService {
       this.isFollowToolbar = isFollowToolbar
     })
 
+    configManager.subscribe(ConfigKeys.SelectionAssistantRemeberWinSize, (isRemeberWinSize: boolean) => {
+      this.isRemeberWinSize = isRemeberWinSize
+      //when off, reset the last action window size to default
+      if (!this.isRemeberWinSize) {
+        this.lastActionWindowSize = {
+          width: this.ACTION_WINDOW_WIDTH,
+          height: this.ACTION_WINDOW_HEIGHT
+        }
+      }
+    })
+
     configManager.subscribe(ConfigKeys.SelectionAssistantFilterMode, (filterMode: string) => {
       this.filterMode = filterMode
       this.setHookGlobalFilterMode(this.filterMode, this.filterList)
@@ -810,8 +828,8 @@ export class SelectionService {
    */
   private createPreloadedActionWindow(): BrowserWindow {
     const preloadedActionWindow = new BrowserWindow({
-      width: this.ACTION_WINDOW_WIDTH,
-      height: this.ACTION_WINDOW_HEIGHT,
+      width: this.isRemeberWinSize ? this.lastActionWindowSize.width : this.ACTION_WINDOW_WIDTH,
+      height: this.isRemeberWinSize ? this.lastActionWindowSize.height : this.ACTION_WINDOW_HEIGHT,
       minWidth: 300,
       minHeight: 200,
       frame: false,
@@ -885,6 +903,16 @@ export class SelectionService {
       }
     })
 
+    //remember the action window size
+    actionWindow.on('resized', () => {
+      if (this.isRemeberWinSize) {
+        this.lastActionWindowSize = {
+          width: actionWindow.getBounds().width,
+          height: actionWindow.getBounds().height
+        }
+      }
+    })
+
     this.actionWindows.add(actionWindow)
 
     // Asynchronously create a new preloaded window
@@ -907,30 +935,58 @@ export class SelectionService {
    * @param actionWindow Window to position and show
    */
   private showActionWindow(actionWindow: BrowserWindow) {
+    let actionWindowWidth = this.ACTION_WINDOW_WIDTH
+    let actionWindowHeight = this.ACTION_WINDOW_HEIGHT
+
+    //if remember win size is true, use the last remembered size
+    if (this.isRemeberWinSize) {
+      actionWindowWidth = this.lastActionWindowSize.width
+      actionWindowHeight = this.lastActionWindowSize.height
+    }
+
+    //center way
     if (!this.isFollowToolbar || !this.toolbarWindow) {
+      if (this.isRemeberWinSize) {
+        actionWindow.setBounds({
+          width: actionWindowWidth,
+          height: actionWindowHeight
+        })
+      }
+
       actionWindow.show()
       this.hideToolbar()
       return
     }
 
+    //follow toolbar
+
     const toolbarBounds = this.toolbarWindow!.getBounds()
     const display = screen.getDisplayNearestPoint({ x: toolbarBounds.x, y: toolbarBounds.y })
     const workArea = display.workArea
     const GAP = 6 // 6px gap from screen edges
 
+    //make sure action window is inside screen
+    if (actionWindowWidth > workArea.width - 2 * GAP) {
+      actionWindowWidth = workArea.width - 2 * GAP
+    }
+
+    if (actionWindowHeight > workArea.height - 2 * GAP) {
+      actionWindowHeight = workArea.height - 2 * GAP
+    }
+
     // Calculate initial position to center action window horizontally below toolbar
-    let posX = Math.round(toolbarBounds.x + (toolbarBounds.width - this.ACTION_WINDOW_WIDTH) / 2)
+    let posX = Math.round(toolbarBounds.x + (toolbarBounds.width - actionWindowWidth) / 2)
     let posY = Math.round(toolbarBounds.y)
 
     // Ensure action window stays within screen boundaries with a small gap
-    if (posX + this.ACTION_WINDOW_WIDTH > workArea.x + workArea.width) {
-      posX = workArea.x + workArea.width - this.ACTION_WINDOW_WIDTH - GAP
+    if (posX + actionWindowWidth > workArea.x + workArea.width) {
+      posX = workArea.x + workArea.width - actionWindowWidth - GAP
     } else if (posX < workArea.x) {
       posX = workArea.x + GAP
     }
-    if (posY + this.ACTION_WINDOW_HEIGHT > workArea.y + workArea.height) {
+    if (posY + actionWindowHeight > workArea.y + workArea.height) {
       // If window would go below screen, try to position it above toolbar
-      posY = workArea.y + workArea.height - this.ACTION_WINDOW_HEIGHT - GAP
+      posY = workArea.y + workArea.height - actionWindowHeight - GAP
     } else if (posY < workArea.y) {
       posY = workArea.y + GAP
     }
@@ -938,8 +994,8 @@ export class SelectionService {
     actionWindow.setPosition(posX, posY, false)
     //KEY to make window not resize
     actionWindow.setBounds({
-      width: this.ACTION_WINDOW_WIDTH,
-      height: this.ACTION_WINDOW_HEIGHT,
+      width: actionWindowWidth,
+      height: actionWindowHeight,
       x: posX,
       y: posY
     })
@@ -1021,6 +1077,10 @@ export class SelectionService {
       configManager.setSelectionAssistantFollowToolbar(isFollowToolbar)
     })
 
+    ipcMain.handle(IpcChannel.Selection_SetRemeberWinSize, (_, isRemeberWinSize: boolean) => {
+      configManager.setSelectionAssistantRemeberWinSize(isRemeberWinSize)
+    })
+
     ipcMain.handle(IpcChannel.Selection_SetFilterMode, (_, filterMode: string) => {
       configManager.setSelectionAssistantFilterMode(filterMode)
     })
diff --git a/src/preload/index.ts b/src/preload/index.ts
index 625fbfbfde..25b8bf8c7a 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -218,6 +218,8 @@ const api = {
     setTriggerMode: (triggerMode: string) => ipcRenderer.invoke(IpcChannel.Selection_SetTriggerMode, triggerMode),
     setFollowToolbar: (isFollowToolbar: boolean) =>
       ipcRenderer.invoke(IpcChannel.Selection_SetFollowToolbar, isFollowToolbar),
+    setRemeberWinSize: (isRemeberWinSize: boolean) =>
+      ipcRenderer.invoke(IpcChannel.Selection_SetRemeberWinSize, isRemeberWinSize),
     setFilterMode: (filterMode: string) => ipcRenderer.invoke(IpcChannel.Selection_SetFilterMode, filterMode),
     setFilterList: (filterList: string[]) => ipcRenderer.invoke(IpcChannel.Selection_SetFilterList, filterList),
     processAction: (actionItem: ActionItem) => ipcRenderer.invoke(IpcChannel.Selection_ProcessAction, actionItem),
diff --git a/src/renderer/src/hooks/useSelectionAssistant.ts b/src/renderer/src/hooks/useSelectionAssistant.ts
index 17bd14e977..93a51b2c70 100644
--- a/src/renderer/src/hooks/useSelectionAssistant.ts
+++ b/src/renderer/src/hooks/useSelectionAssistant.ts
@@ -8,6 +8,7 @@ import {
   setIsAutoPin,
   setIsCompact,
   setIsFollowToolbar,
+  setIsRemeberWinSize,
   setSelectionEnabled,
   setTriggerMode
 } from '@renderer/store/selectionStore'
@@ -40,6 +41,10 @@ export function useSelectionAssistant() {
       dispatch(setIsFollowToolbar(isFollowToolbar))
       window.api.selection.setFollowToolbar(isFollowToolbar)
     },
+    setIsRemeberWinSize: (isRemeberWinSize: boolean) => {
+      dispatch(setIsRemeberWinSize(isRemeberWinSize))
+      window.api.selection.setRemeberWinSize(isRemeberWinSize)
+    },
     setFilterMode: (mode: FilterMode) => {
       dispatch(setFilterMode(mode))
       window.api.selection.setFilterMode(mode)
diff --git a/src/renderer/src/i18n/locales/en-us.json b/src/renderer/src/i18n/locales/en-us.json
index c7e72d5a10..1c18afc63a 100644
--- a/src/renderer/src/i18n/locales/en-us.json
+++ b/src/renderer/src/i18n/locales/en-us.json
@@ -1880,6 +1880,10 @@
             "title": "Follow Toolbar",
             "description": "Window position will follow the toolbar. When disabled, it will always be centered."
           },
+          "remember_size": {
+            "title": "Remember Size",
+            "description": "Window will display at the last adjusted size during the application running"
+          },
           "auto_close": {
             "title": "Auto Close",
             "description": "Automatically close the window when it's not pinned and loses focus"
diff --git a/src/renderer/src/i18n/locales/ja-jp.json b/src/renderer/src/i18n/locales/ja-jp.json
index f4b213aa71..aece8cd3d7 100644
--- a/src/renderer/src/i18n/locales/ja-jp.json
+++ b/src/renderer/src/i18n/locales/ja-jp.json
@@ -1880,6 +1880,10 @@
             "title": "ツールバーに追従",
             "description": "ウィンドウ位置をツールバーに連動（無効時は中央表示）"
           },
+          "remember_size": {
+            "title": "サイズを記憶",
+            "description": "アプリケーション実行中、ウィンドウは最後に調整されたサイズで表示されます"
+          },
           "auto_close": {
             "title": "自動閉じる",
             "description": "最前面固定されていない場合、フォーカス喪失時に自動閉じる"
diff --git a/src/renderer/src/i18n/locales/ru-ru.json b/src/renderer/src/i18n/locales/ru-ru.json
index 29b2be684c..13c1fbb3ac 100644
--- a/src/renderer/src/i18n/locales/ru-ru.json
+++ b/src/renderer/src/i18n/locales/ru-ru.json
@@ -1880,6 +1880,10 @@
             "title": "Следовать за панелью",
             "description": "Окно будет следовать за панелью. Иначе - по центру."
           },
+          "remember_size": {
+            "title": "Запомнить размер",
+            "description": "При отключенном режиме, окно будет восстанавливаться до последнего размера при запуске приложения"
+          },
           "auto_close": {
             "title": "Автозакрытие",
             "description": "Закрывать окно при потере фокуса (если не закреплено)"
diff --git a/src/renderer/src/i18n/locales/zh-cn.json b/src/renderer/src/i18n/locales/zh-cn.json
index 538ea8e8aa..9519427dae 100644
--- a/src/renderer/src/i18n/locales/zh-cn.json
+++ b/src/renderer/src/i18n/locales/zh-cn.json
@@ -1880,6 +1880,10 @@
             "title": "跟随工具栏",
             "description": "窗口位置将跟随工具栏显示，禁用后则始终居中显示"
           },
+          "remember_size": {
+            "title": "记住大小",
+            "description": "应用运行期间，窗口会按上次调整的大小显示"
+          },
           "auto_close": {
             "title": "自动关闭",
             "description": "当窗口未置顶且失去焦点时，将自动关闭该窗口"
diff --git a/src/renderer/src/i18n/locales/zh-tw.json b/src/renderer/src/i18n/locales/zh-tw.json
index 3540b8192b..d703265a2c 100644
--- a/src/renderer/src/i18n/locales/zh-tw.json
+++ b/src/renderer/src/i18n/locales/zh-tw.json
@@ -1880,6 +1880,10 @@
             "title": "跟隨工具列",
             "description": "視窗位置將跟隨工具列顯示，停用後則始終置中顯示"
           },
+          "remember_size": {
+            "title": "記住大小",
+            "description": "應用運行期間，視窗會按上次調整的大小顯示"
+          },
           "auto_close": {
             "title": "自動關閉",
             "description": "當視窗未置頂且失去焦點時，將自動關閉該視窗"
diff --git a/src/renderer/src/pages/settings/SelectionAssistantSettings/SelectionAssistantSettings.tsx b/src/renderer/src/pages/settings/SelectionAssistantSettings/SelectionAssistantSettings.tsx
index 47bd71b8ea..84ed4ad8fa 100644
--- a/src/renderer/src/pages/settings/SelectionAssistantSettings/SelectionAssistantSettings.tsx
+++ b/src/renderer/src/pages/settings/SelectionAssistantSettings/SelectionAssistantSettings.tsx
@@ -31,6 +31,7 @@ const SelectionAssistantSettings: FC = () => {
     isAutoClose,
     isAutoPin,
     isFollowToolbar,
+    isRemeberWinSize,
     actionItems,
     actionWindowOpacity,
     filterMode,
@@ -41,6 +42,7 @@ const SelectionAssistantSettings: FC = () => {
     setIsAutoClose,
     setIsAutoPin,
     setIsFollowToolbar,
+    setIsRemeberWinSize,
     setActionWindowOpacity,
     setActionItems,
     setFilterMode,
@@ -140,6 +142,16 @@ const SelectionAssistantSettings: FC = () => {
 
             <SettingDivider />
 
+            <SettingRow>
+              <SettingLabel>
+                <SettingRowTitle>{t('selection.settings.window.remember_size.title')}</SettingRowTitle>
+                <SettingDescription>{t('selection.settings.window.remember_size.description')}</SettingDescription>
+              </SettingLabel>
+              <Switch checked={isRemeberWinSize} onChange={(checked) => setIsRemeberWinSize(checked)} />
+            </SettingRow>
+
+            <SettingDivider />
+
             <SettingRow>
               <SettingLabel>
                 <SettingRowTitle>{t('selection.settings.window.auto_close.title')}</SettingRowTitle>
@@ -191,7 +203,7 @@ const SelectionAssistantSettings: FC = () => {
                 <SettingDescription>{t('selection.settings.advanced.filter_mode.description')}</SettingDescription>
               </SettingLabel>
               <Radio.Group
-                value={filterMode}
+                value={filterMode ?? 'default'}
                 onChange={(e) => setFilterMode(e.target.value as FilterMode)}
                 buttonStyle="solid">
                 <Radio.Button value="default">{t('selection.settings.advanced.filter_mode.default')}</Radio.Button>
@@ -200,7 +212,7 @@ const SelectionAssistantSettings: FC = () => {
               </Radio.Group>
             </SettingRow>
 
-            {filterMode !== 'default' && (
+            {filterMode && filterMode !== 'default' && (
               <>
                 <SettingDivider />
                 <SettingRow>
diff --git a/src/renderer/src/store/selectionStore.ts b/src/renderer/src/store/selectionStore.ts
index a4269db2bf..09e6c83262 100644
--- a/src/renderer/src/store/selectionStore.ts
+++ b/src/renderer/src/store/selectionStore.ts
@@ -24,6 +24,7 @@ export const initialState: SelectionState = {
   isAutoClose: false,
   isAutoPin: false,
   isFollowToolbar: true,
+  isRemeberWinSize: false,
   filterMode: 'default',
   filterList: [],
   actionWindowOpacity: 100,
@@ -52,6 +53,9 @@ const selectionSlice = createSlice({
     setIsFollowToolbar: (state, action: PayloadAction<boolean>) => {
       state.isFollowToolbar = action.payload
     },
+    setIsRemeberWinSize: (state, action: PayloadAction<boolean>) => {
+      state.isRemeberWinSize = action.payload
+    },
     setFilterMode: (state, action: PayloadAction<FilterMode>) => {
       state.filterMode = action.payload
     },
@@ -74,6 +78,7 @@ export const {
   setIsAutoClose,
   setIsAutoPin,
   setIsFollowToolbar,
+  setIsRemeberWinSize,
   setFilterMode,
   setFilterList,
   setActionWindowOpacity,
diff --git a/src/renderer/src/types/selectionTypes.d.ts b/src/renderer/src/types/selectionTypes.d.ts
index 3efe539b64..075dde9982 100644
--- a/src/renderer/src/types/selectionTypes.d.ts
+++ b/src/renderer/src/types/selectionTypes.d.ts
@@ -19,6 +19,7 @@ export interface SelectionState {
   isAutoClose: boolean
   isAutoPin: boolean
   isFollowToolbar: boolean
+  isRemeberWinSize: boolean
   filterMode: FilterMode
   filterList: string[]
   actionWindowOpacity: number
diff --git a/src/renderer/src/windows/selection/action/SelectionActionApp.tsx b/src/renderer/src/windows/selection/action/SelectionActionApp.tsx
index b29d16c194..086d46a68e 100644
--- a/src/renderer/src/windows/selection/action/SelectionActionApp.tsx
+++ b/src/renderer/src/windows/selection/action/SelectionActionApp.tsx
@@ -221,10 +221,12 @@ const SelectionActionApp: FC = () => {
           <WinButton type="text" icon={<X size={16} />} onClick={handleClose} className="close" />
         </TitleBarButtons>
       </TitleBar>
-      <Content ref={contentElementRef}>
-        {action.id == 'translate' && <ActionTranslate action={action} scrollToBottom={handleScrollToBottom} />}
-        {action.id != 'translate' && <ActionGeneral action={action} scrollToBottom={handleScrollToBottom} />}
-      </Content>
+      <MainContainer>
+        <Content ref={contentElementRef}>
+          {action.id == 'translate' && <ActionTranslate action={action} scrollToBottom={handleScrollToBottom} />}
+          {action.id != 'translate' && <ActionGeneral action={action} scrollToBottom={handleScrollToBottom} />}
+        </Content>
+      </MainContainer>
     </WindowFrame>
   )
 }
@@ -340,6 +342,14 @@ const WinButton = styled(Button)`
   }
 `
 
+const MainContainer = styled.div`
+  display: flex;
+  justify-content: center;
+  width: 100%;
+  height: 100%;
+  overflow: auto;
+`
+
 const Content = styled.div`
   display: flex;
   flex-direction: column;
@@ -349,7 +359,8 @@ const Content = styled.div`
   font-size: 14px;
   -webkit-app-region: none;
   user-select: text;
-  width: 100%;
+  /* width: 100%; */
+  max-width: 1280px;
 `
 
 const OpacitySlider = styled.div`
diff --git a/src/renderer/src/windows/selection/action/components/ActionGeneral.tsx b/src/renderer/src/windows/selection/action/components/ActionGeneral.tsx
index a481b55eb8..58aa0a60c9 100644
--- a/src/renderer/src/windows/selection/action/components/ActionGeneral.tsx
+++ b/src/renderer/src/windows/selection/action/components/ActionGeneral.tsx
@@ -266,13 +266,11 @@ const Container = styled.div`
 const Result = styled.div`
   margin-top: 4px;
   width: 100%;
-  max-width: 960px;
 `
 
 const MenuContainer = styled.div`
   display: flex;
   width: 100%;
-  max-width: 960px;
   flex-direction: row;
   align-items: center;
   justify-content: flex-end;
@@ -309,7 +307,6 @@ const OriginalContent = styled.div`
   white-space: pre-wrap;
   word-break: break-word;
   width: 100%;
-  max-width: 960px;
 `
 
 const OriginalContentCopyWrapper = styled.div`
diff --git a/src/renderer/src/windows/selection/action/components/ActionTranslate.tsx b/src/renderer/src/windows/selection/action/components/ActionTranslate.tsx
index e826495dd8..d115872f77 100644
--- a/src/renderer/src/windows/selection/action/components/ActionTranslate.tsx
+++ b/src/renderer/src/windows/selection/action/components/ActionTranslate.tsx
@@ -155,7 +155,6 @@ const Result = styled.div`
   white-space: pre-wrap;
   word-break: break-word;
   width: 100%;
-  max-width: 960px;
 `
 
 const MenuContainer = styled.div`
@@ -164,7 +163,6 @@ const MenuContainer = styled.div`
   flex-direction: row;
   align-items: center;
   justify-content: space-between;
-  max-width: 960px;
 `
 
 const OriginalHeader = styled.div`
@@ -198,7 +196,6 @@ const OriginalContent = styled.div`
   white-space: pre-wrap;
   word-break: break-word;
   width: 100%;
-  max-width: 960px;
 `
 
 const OriginalContentCopyWrapper = styled.div`