diff --git a/web/app/components/plugins/plugin-detail-panel/tool-selector/index.tsx b/web/app/components/plugins/plugin-detail-panel/tool-selector/index.tsx
index f3b2cb6a10..42467ce111 100644
--- a/web/app/components/plugins/plugin-detail-panel/tool-selector/index.tsx
+++ b/web/app/components/plugins/plugin-detail-panel/tool-selector/index.tsx
@@ -293,7 +293,6 @@ const ToolSelector: FC<Props> = ({
                   <div className='flex flex-col gap-1'>
                     <div className='system-sm-semibold flex h-6 items-center text-text-secondary'>{t('plugin.detailPanel.toolSelector.toolLabel')}</div>
                     <ToolPicker
-                      panelClassName='w-[400px]'
                       placement='bottom'
                       offset={offset}
                       trigger={
diff --git a/web/app/components/workflow/block-selector/all-tools.tsx b/web/app/components/workflow/block-selector/all-tools.tsx
index a069d312c4..45ed5c4693 100644
--- a/web/app/components/workflow/block-selector/all-tools.tsx
+++ b/web/app/components/workflow/block-selector/all-tools.tsx
@@ -111,7 +111,7 @@ const AllTools = ({
   const isSupportGroupView = [ToolTypeEnum.All, ToolTypeEnum.BuiltIn].includes(activeTab)
 
   return (
-    <div className={cn(className)}>
+    <div className={cn('max-w-[500px]', className)}>
       <div className='flex items-center justify-between border-b border-divider-subtle px-3'>
         <div className='flex h-8 items-center space-x-1'>
           {
diff --git a/web/app/components/workflow/block-selector/tabs.tsx b/web/app/components/workflow/block-selector/tabs.tsx
index c9913da1fa..3f3fed2ca9 100644
--- a/web/app/components/workflow/block-selector/tabs.tsx
+++ b/web/app/components/workflow/block-selector/tabs.tsx
@@ -74,7 +74,6 @@ const Tabs: FC<TabsProps> = ({
       {
         activeTab === TabsEnum.Tools && (
           <AllTools
-            className='w-[400px]'
             searchText={searchText}
             onSelect={onSelect}
             tags={tags}
diff --git a/web/app/components/workflow/block-selector/tool-picker.tsx b/web/app/components/workflow/block-selector/tool-picker.tsx
index 135e333a41..d97a4f3a1b 100644
--- a/web/app/components/workflow/block-selector/tool-picker.tsx
+++ b/web/app/components/workflow/block-selector/tool-picker.tsx
@@ -151,7 +151,7 @@ const ToolPicker: FC<Props> = ({
       </PortalToFollowElemTrigger>
 
       <PortalToFollowElemContent className='z-[1000]'>
-        <div className={cn('relative min-h-20 w-[400px] rounded-xl border-[0.5px] border-components-panel-border bg-components-panel-bg-blur shadow-lg backdrop-blur-sm', panelClassName)}>
+        <div className={cn('relative min-h-20 rounded-xl border-[0.5px] border-components-panel-border bg-components-panel-bg-blur shadow-lg backdrop-blur-sm', panelClassName)}>
           <div className='p-2 pb-1'>
             <SearchBox
               search={searchText}