diff --git a/eslint-suppressions.json b/eslint-suppressions.json
index 1db5e1bc59..de8946480e 100644
--- a/eslint-suppressions.json
+++ b/eslint-suppressions.json
@@ -1825,11 +1825,6 @@
       "count": 4
     }
   },
-  "web/app/components/base/prompt-editor/plugins/component-picker-block/index.tsx": {
-    "ts/no-explicit-any": {
-      "count": 1
-    }
-  },
   "web/app/components/base/prompt-editor/plugins/component-picker-block/menu.tsx": {
     "erasable-syntax-only/parameter-properties": {
       "count": 1
diff --git a/web/app/components/base/prompt-editor/plugins/component-picker-block/__tests__/index.spec.tsx b/web/app/components/base/prompt-editor/plugins/component-picker-block/__tests__/index.spec.tsx
index a09e25f6e9..d14de7d58b 100644
--- a/web/app/components/base/prompt-editor/plugins/component-picker-block/__tests__/index.spec.tsx
+++ b/web/app/components/base/prompt-editor/plugins/component-picker-block/__tests__/index.spec.tsx
@@ -29,6 +29,7 @@ import {
 } from 'lexical'
 import * as React from 'react'
 import { GeneratorType } from '@/app/components/app/configuration/config/automatic/types'
+import { VAR_REFERENCE_CHILD_POPUP_CLASS_NAME } from '@/app/components/workflow/nodes/_base/components/variable/var-reference-vars'
 import { VarType } from '@/app/components/workflow/types'
 import { useEventEmitterContextContext } from '@/context/event-emitter'
 import { EventEmitterContextProvider } from '@/context/event-emitter-provider'
@@ -928,5 +929,46 @@ describe('ComponentPicker (component-picker-block/index.tsx)', () => {
 
       vi.useRealTimers()
     })
+
+    it('does not hide the menu when focus moves into a variable child popup', async () => {
+      const captures: Captures = { editor: null, eventEmitter: null }
+
+      render((
+        <MinimalEditor
+          triggerString="/"
+          workflowVariableBlock={makeWorkflowVariableBlock({}, [
+            makeWorkflowVarNode('node-1', 'Node 1', [
+              makeWorkflowNodeVar('payload', VarType.object, [makeWorkflowNodeVar('child', VarType.string)]),
+            ]),
+          ])}
+          captures={captures}
+        />
+      ))
+
+      const editor = await waitForEditor(captures)
+      await setEditorText(editor, '/', true)
+      expect(await screen.findByText('payload')).toBeInTheDocument()
+
+      vi.useFakeTimers()
+
+      const popupTarget = document.createElement('button')
+      const popup = document.createElement('div')
+      popup.classList.add(VAR_REFERENCE_CHILD_POPUP_CLASS_NAME)
+      popup.appendChild(popupTarget)
+      document.body.appendChild(popup)
+
+      act(() => {
+        editor.dispatchCommand(BLUR_COMMAND, new FocusEvent('blur-sm', { relatedTarget: popupTarget }))
+      })
+
+      act(() => {
+        vi.advanceTimersByTime(200)
+      })
+
+      expect(screen.queryByText('payload')).toBeInTheDocument()
+
+      popup.remove()
+      vi.useRealTimers()
+    })
   })
 })
diff --git a/web/app/components/base/prompt-editor/plugins/component-picker-block/index.tsx b/web/app/components/base/prompt-editor/plugins/component-picker-block/index.tsx
index 503af4077d..10c371916b 100644
--- a/web/app/components/base/prompt-editor/plugins/component-picker-block/index.tsx
+++ b/web/app/components/base/prompt-editor/plugins/component-picker-block/index.tsx
@@ -14,6 +14,7 @@ import type {
   WorkflowVariableBlockType,
 } from '../../types'
 import type { PickerBlockMenuOption } from './menu'
+import type { EventEmitterValue } from '@/context/event-emitter'
 import {
   flip,
   offset,
@@ -39,7 +40,7 @@ import {
 } from 'react'
 import ReactDOM from 'react-dom'
 import { GeneratorType } from '@/app/components/app/configuration/config/automatic/types'
-import VarReferenceVars from '@/app/components/workflow/nodes/_base/components/variable/var-reference-vars'
+import VarReferenceVars, { VAR_REFERENCE_CHILD_POPUP_CLASS_NAME } from '@/app/components/workflow/nodes/_base/components/variable/var-reference-vars'
 import { useEventEmitterContextContext } from '@/context/event-emitter'
 import { useBasicTypeaheadTriggerMatch } from '../../hooks'
 import { $splitNodeContainingQuery } from '../../utils'
@@ -119,7 +120,9 @@ const ComponentPicker = ({
         (event) => {
           clearBlurTimer()
           const target = event?.relatedTarget as HTMLElement
-          if (!target?.classList?.contains('var-search-input'))
+          const isVariableMenuTarget = target?.classList?.contains('var-search-input')
+            || target?.closest?.(`.${VAR_REFERENCE_CHILD_POPUP_CLASS_NAME}`)
+          if (!isVariableMenuTarget)
             blurTimerRef.current = setTimeout(() => setBlurHidden(true), 200)
           return false
         },
@@ -143,8 +146,8 @@ const ComponentPicker = ({
     }
   }, [editor, clearBlurTimer])
 
-  eventEmitter?.useSubscription((v: any) => {
-    if (v.type === INSERT_VARIABLE_VALUE_BLOCK_COMMAND)
+  eventEmitter?.useSubscription((v: EventEmitterValue) => {
+    if (typeof v !== 'string' && v.type === INSERT_VARIABLE_VALUE_BLOCK_COMMAND && typeof v.payload === 'string')
       editor.dispatchCommand(INSERT_VARIABLE_VALUE_BLOCK_COMMAND, `{{${v.payload}}}`)
   })
 
@@ -303,7 +306,7 @@ const ComponentPicker = ({
         }
       </>
     )
-  }, [blurHidden, allFlattenOptions.length, workflowVariableBlock?.show, floatingStyles, isPositioned, refs, workflowVariableOptions, isSupportFileVar, handleClose, currentBlock?.generatorType, handleSelectWorkflowVariable, queryString, workflowVariableBlock?.showManageInputField, workflowVariableBlock?.onManageInputField])
+  }, [blurHidden, allFlattenOptions.length, workflowVariableBlock?.show, floatingStyles, isPositioned, refs, workflowVariableOptions, isSupportFileVar, handleClose, currentBlock?.generatorType, handleSelectWorkflowVariable, queryString, triggerString, workflowVariableBlock?.showManageInputField, workflowVariableBlock?.onManageInputField])
 
   return (
     <LexicalTypeaheadMenuPlugin
diff --git a/web/app/components/workflow/nodes/_base/components/variable/object-child-tree-panel/picker/field.tsx b/web/app/components/workflow/nodes/_base/components/variable/object-child-tree-panel/picker/field.tsx
index 717d8afbe7..50fa91ac32 100644
--- a/web/app/components/workflow/nodes/_base/components/variable/object-child-tree-panel/picker/field.tsx
+++ b/web/app/components/workflow/nodes/_base/components/variable/object-child-tree-panel/picker/field.tsx
@@ -3,10 +3,10 @@ import type { FC } from 'react'
 import type { Field as FieldType } from '../../../../../llm/types'
 import type { ValueSelector } from '@/app/components/workflow/types'
 import { cn } from '@langgenius/dify-ui/cn'
+import { Tooltip, TooltipContent, TooltipTrigger } from '@langgenius/dify-ui/tooltip'
 import { RiMoreFill } from '@remixicon/react'
 import * as React from 'react'
 import { useTranslation } from 'react-i18next'
-import Tooltip from '@/app/components/base/tooltip'
 import { Type } from '../../../../../llm/types'
 import { getFieldType } from '../../../../../llm/utils'
 import TreeIndentLine from '../tree-indent-line'
@@ -38,24 +38,32 @@ const Field: FC<Props> = ({
     return null
   return (
     <div>
-      <Tooltip popupContent={t('structOutput.moreFillTip', { ns: 'app' })} disabled={depth !== MAX_DEPTH + 1}>
-        <div
-          className={cn('flex items-center justify-between rounded-md pr-2', !readonly && 'hover:bg-state-base-hover', depth !== MAX_DEPTH + 1 && 'cursor-pointer')}
-          onMouseDown={() => !readonly && onSelect?.([...valueSelector, name])}
-        >
-          <div className="flex grow items-stretch">
-            <TreeIndentLine depth={depth} />
-            {depth === MAX_DEPTH + 1
-              ? (
-                  <RiMoreFill className="h-3 w-3 text-text-tertiary" />
-                )
-              : (<div className={cn('h-6 w-0 grow truncate system-sm-medium leading-6 text-text-secondary', isHighlight && 'text-text-accent')}>{name}</div>)}
+      <Tooltip>
+        <TooltipTrigger
+          disabled={depth !== MAX_DEPTH + 1}
+          render={(
+            <div
+              className={cn('flex items-center justify-between rounded-md pr-2 outline-none focus:outline-none focus-visible:outline-none', !readonly && 'hover:bg-state-base-hover', depth !== MAX_DEPTH + 1 && 'cursor-pointer')}
+              onMouseDown={() => !readonly && onSelect?.([...valueSelector, name])}
+            >
+              <div className="flex grow items-stretch">
+                <TreeIndentLine depth={depth} />
+                {depth === MAX_DEPTH + 1
+                  ? (
+                    <RiMoreFill className="h-3 w-3 text-text-tertiary" />
+                  )
+                  : (<div className={cn('h-6 w-0 grow truncate system-sm-medium leading-6 text-text-secondary', isHighlight && 'text-text-accent')}>{name}</div>)}
 
-          </div>
-          {depth < MAX_DEPTH + 1 && (
-            <div className="ml-2 shrink-0 system-xs-regular text-text-tertiary">{getFieldType(payload)}</div>
+              </div>
+              {depth < MAX_DEPTH + 1 && (
+                <div className="ml-2 shrink-0 system-xs-regular text-text-tertiary">{getFieldType(payload)}</div>
+              )}
+            </div>
           )}
-        </div>
+        />
+        <TooltipContent>
+          {t('structOutput.moreFillTip', { ns: 'app' })}
+        </TooltipContent>
       </Tooltip>
 
       {depth <= MAX_DEPTH && payload.type === Type.object && payload.properties && (
diff --git a/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx b/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx
index 38fef9016d..420888cb13 100644
--- a/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx
+++ b/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx
@@ -29,6 +29,7 @@ import {
 } from './var-reference-vars.helpers'
 
 const VAR_SEARCH_INPUT_CLASS_NAME = 'var-search-input'
+export const VAR_REFERENCE_CHILD_POPUP_CLASS_NAME = 'var-reference-vars-child-popup'
 
 const resolveValueSelector = ({
   itemData,
@@ -210,7 +211,7 @@ const Item: FC<ItemProps> = ({
       className={cn(
         (isObj || isStructureOutput) ? 'pr-1' : 'pr-[18px]',
         (isHovering || isSelected) && ((isObj || isStructureOutput) ? 'bg-components-panel-on-panel-item-bg-hover' : 'bg-state-base-hover'),
-        'relative flex h-6 w-full cursor-pointer items-center rounded-md pl-3',
+        'relative flex h-6 w-full cursor-pointer items-center rounded-md pl-3 outline-none focus:outline-none focus-visible:outline-none',
         className,
       )}
       data-selected={isSelected ? 'true' : 'false'}
@@ -263,7 +264,7 @@ const Item: FC<ItemProps> = ({
       <PopoverContent
         placement="left-start"
         sideOffset={0}
-        popupClassName="border-none bg-transparent p-0 shadow-none backdrop-blur-none"
+        popupClassName={cn(VAR_REFERENCE_CHILD_POPUP_CLASS_NAME, 'border-none bg-transparent p-0 shadow-none backdrop-blur-none')}
         positionerProps={{
           style: {
             zIndex: zIndex || 100,