diff --git a/packages/dify-ui/src/popover/__tests__/index.spec.tsx b/packages/dify-ui/src/popover/__tests__/index.spec.tsx
index 576c7d338c9..08fc3f38ad1 100644
--- a/packages/dify-ui/src/popover/__tests__/index.spec.tsx
+++ b/packages/dify-ui/src/popover/__tests__/index.spec.tsx
@@ -3,6 +3,8 @@ import { userEvent } from 'vite-plus/test/browser'
 import { render } from 'vitest-browser-react'
 import {
   Popover,
+  PopoverBackdrop,
+  PopoverClose,
   PopoverContent,
   PopoverDescription,
   PopoverPopup,
@@ -11,6 +13,12 @@ import {
   PopoverTitle,
   PopoverTrigger,
 } from '..'
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from '../../dropdown-menu'
 
 const renderWithSafeViewport = (ui: React.ReactNode) =>
   render(<div style={{ minHeight: '100vh', minWidth: '100vw', padding: '240px' }}>{ui}</div>)
@@ -95,6 +103,47 @@ describe('PopoverContent', () => {
 })
 
 describe('Popover anatomy', () => {
+  it('places the backdrop above a parent menu and below the interactive popup', async () => {
+    const backdropRef = React.createRef<HTMLDivElement>()
+    const screen = await renderWithSafeViewport(
+      <DropdownMenu modal={false}>
+        <DropdownMenuTrigger>Actions</DropdownMenuTrigger>
+        <DropdownMenuContent>
+          <DropdownMenuItem>Primary action</DropdownMenuItem>
+          <Popover modal="trap-focus">
+            <DropdownMenuItem
+              closeOnClick={false}
+              render={<PopoverTrigger nativeButton={false} render={<div />} />}
+            >
+              More options
+            </DropdownMenuItem>
+            <PopoverPortal>
+              <PopoverBackdrop ref={backdropRef} />
+              <PopoverPositioner placement="right-start">
+                <PopoverPopup>
+                  <PopoverTitle>More options</PopoverTitle>
+                  <input aria-label="Filter options" />
+                  <PopoverClose>Close</PopoverClose>
+                </PopoverPopup>
+              </PopoverPositioner>
+            </PopoverPortal>
+          </Popover>
+        </DropdownMenuContent>
+      </DropdownMenu>,
+    )
+
+    await screen.getByRole('button', { name: 'Actions' }).click()
+    const primaryAction = screen.getByRole('menuitem', { name: 'Primary action' }).element()
+    await screen.getByRole('menuitem', { name: 'More options' }).click()
+    const input = screen.getByRole('textbox', { name: 'Filter options' })
+
+    const { x, y, width, height } = primaryAction.getBoundingClientRect()
+    expect(document.elementFromPoint(x + width / 2, y + height / 2)).toBe(backdropRef.current)
+    await input.click()
+    await input.fill('Example')
+    await expect.element(input).toHaveValue('Example')
+  })
+
   it('should use the default positioner placement', async () => {
     const screen = await renderWithSafeViewport(
       <Popover open>
diff --git a/packages/dify-ui/src/popover/index.tsx b/packages/dify-ui/src/popover/index.tsx
index 06f8ed2d67a..9bbd0ab2d85 100644
--- a/packages/dify-ui/src/popover/index.tsx
+++ b/packages/dify-ui/src/popover/index.tsx
@@ -25,6 +25,14 @@ type PopoverCloseProps = BasePopover.Close.Props
 type PopoverTitleProps = BasePopover.Title.Props
 type PopoverDescriptionProps = BasePopover.Description.Props
 
+type PopoverBackdropProps = Omit<BasePopover.Backdrop.Props, 'className'> & {
+  className?: string
+}
+
+function PopoverBackdrop({ className, ...props }: PopoverBackdropProps) {
+  return <BasePopover.Backdrop className={cn('fixed inset-0 z-50', className)} {...props} />
+}
+
 type PopoverPositionerProps = Omit<BasePopover.Positioner.Props, 'className' | 'side' | 'align'> & {
   className?: string
   placement?: Placement
@@ -103,6 +111,7 @@ export {
   createPopoverHandle,
   Popover,
   PopoverArrow,
+  PopoverBackdrop,
   PopoverClose,
   PopoverContent,
   PopoverDescription,
@@ -114,6 +123,7 @@ export {
 }
 export type {
   PopoverArrowProps,
+  PopoverBackdropProps,
   PopoverCloseProps,
   PopoverContentProps,
   PopoverDescriptionProps,
diff --git a/web/app/components/workflow/block-selector/index.tsx b/web/app/components/workflow/block-selector/index.tsx
index 3a91e2926ac..84b2f0fd9f7 100644
--- a/web/app/components/workflow/block-selector/index.tsx
+++ b/web/app/components/workflow/block-selector/index.tsx
@@ -241,7 +241,7 @@ type BlockSelectorContentProps = Pick<
   searchInputRef: React.RefObject<HTMLInputElement | null>
 }
 
-function BlockSelectorContent({
+export function BlockSelectorContent({
   allowUserInputSelection,
   availableBlocksTypes,
   blocks: blocksFromProps,
diff --git a/web/app/components/workflow/node-actions-menu/__tests__/details.spec.tsx b/web/app/components/workflow/node-actions-menu/__tests__/details.spec.tsx
index 6bf60b9b36e..05f3ac93a29 100644
--- a/web/app/components/workflow/node-actions-menu/__tests__/details.spec.tsx
+++ b/web/app/components/workflow/node-actions-menu/__tests__/details.spec.tsx
@@ -3,7 +3,7 @@ import {
   DropdownMenuContent,
   DropdownMenuTrigger,
 } from '@langgenius/dify-ui/dropdown-menu'
-import { screen } from '@testing-library/react'
+import { screen, waitFor } from '@testing-library/react'
 import userEvent from '@testing-library/user-event'
 import { renderWorkflowFlowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
 import { useHooksStore } from '@/app/components/workflow/hooks-store'
@@ -11,11 +11,13 @@ import useNodes from '@/app/components/workflow/store/workflow/use-nodes'
 import { BlockEnum, NodeRunningStatus } from '@/app/components/workflow/types'
 import { useAllWorkflowTools } from '@/service/use-tools'
 import { FlowType } from '@/types/common'
+import { BlockClassification } from '../../block-selector/types'
 import { useAvailableBlocks } from '../../hooks/use-available-blocks'
 import { useNodesInteractions } from '../../hooks/use-nodes-interactions'
 import { useNodeMetaData } from '../../hooks/use-nodes-meta-data'
 import { useIsChatMode, useNodesReadOnly } from '../../hooks/use-workflow'
 import { NodeActionsDropdownContent } from '../dropdown-content'
+import { NodeActionsDropdown } from '../index'
 
 vi.mock('../../hooks/use-available-blocks', async (importOriginal) => {
   const actual = await importOriginal<typeof import('../../hooks/use-available-blocks')>()
@@ -64,6 +66,22 @@ vi.mock('@/app/components/workflow/store/workflow/use-nodes', () => ({
 
 vi.mock('@/service/use-tools', () => ({
   useAllWorkflowTools: vi.fn(),
+  useAllBuiltInTools: () => ({ data: [] }),
+  useAllCustomTools: () => ({ data: [] }),
+  useAllMCPTools: () => ({ data: [] }),
+  useInvalidateAllBuiltInTools: () => vi.fn(),
+}))
+
+vi.mock('@/service/use-plugins', () => ({
+  useFeaturedToolsRecommendations: () => ({ plugins: [], isLoading: false }),
+  useFeaturedTriggersRecommendations: () => ({ plugins: [], isLoading: false }),
+}))
+vi.mock('@/app/components/plugins/marketplace/query', () => ({
+  useMarketplacePlugins: () => ({ data: undefined }),
+}))
+vi.mock('@/service/use-triggers', () => ({
+  useAllTriggerPlugins: () => ({ data: [] }),
+  useInvalidateAllTriggerPlugins: () => vi.fn(),
 }))
 
 const mockUseAvailableBlocks = vi.mocked(useAvailableBlocks)
@@ -143,6 +161,22 @@ describe('node actions menu details', () => {
       selector({
         configsMap: { flowType: FlowType.appFlow },
         accessControl: { canRun: true },
+        availableNodesMetaData: {
+          nodes: [
+            {
+              metaData: {
+                type: BlockEnum.HttpRequest,
+                title: 'HTTP Request',
+                classification: BlockClassification.Default,
+                sort: 0,
+                author: 'Dify',
+                description: 'Send a request',
+              },
+              defaultValue: {},
+              checkValid: () => ({ isValid: true }),
+            },
+          ],
+        },
       }),
     )
     mockUseNodes.mockReturnValue([
@@ -151,6 +185,46 @@ describe('node actions menu details', () => {
     mockUseAllWorkflowTools.mockReturnValue({ data: [] } as any)
   })
 
+  it('keeps the menu after Escape and closes both surfaces after changing a node', async () => {
+    const user = userEvent.setup()
+    renderWorkflowFlowComponent(
+      <NodeActionsDropdown
+        id="node-1"
+        data={{ type: BlockEnum.Code, title: 'Code Node', desc: '' }}
+      />,
+      {
+        nodes: [],
+        edges: [{ id: 'edge-1', source: 'node-0', target: 'node-1', sourceHandle: 'branch-a' }],
+      },
+    )
+
+    await user.click(screen.getByRole('button', { name: 'common.operation.more' }))
+    const changeNode = screen.getByRole('menuitem', { name: 'workflow.panel.changeBlock' })
+    await user.click(changeNode)
+    const search = screen.getByRole('searchbox', { name: 'workflow.tabs.searchBlock' })
+    await waitFor(() => expect(search).toHaveFocus())
+    await user.keyboard('{ArrowDown}')
+    expect(search).toHaveFocus()
+    await user.keyboard('{Escape}')
+    await waitFor(() => expect(screen.queryByRole('dialog')).not.toBeInTheDocument())
+    expect(screen.getByRole('menu')).toBeInTheDocument()
+    expect(changeNode).toHaveFocus()
+
+    await user.keyboard('{Enter}')
+    await user.click(await screen.findByRole('button', { name: 'HTTP Request' }))
+
+    expect(handleNodeChange).toHaveBeenCalledExactlyOnceWith(
+      'node-1',
+      BlockEnum.HttpRequest,
+      'branch-a',
+      undefined,
+    )
+    await waitFor(() => {
+      expect(screen.queryByRole('menu')).not.toBeInTheDocument()
+      expect(screen.queryByRole('dialog')).not.toBeInTheDocument()
+    })
+  })
+
   it('should run, copy, duplicate, delete, and expose the help link', async () => {
     const user = userEvent.setup()
     const { store } = renderDropdownContent()
diff --git a/web/app/components/workflow/node-actions-menu/__tests__/index.spec.tsx b/web/app/components/workflow/node-actions-menu/__tests__/index.spec.tsx
index d5a595881ff..4003a0f3f21 100644
--- a/web/app/components/workflow/node-actions-menu/__tests__/index.spec.tsx
+++ b/web/app/components/workflow/node-actions-menu/__tests__/index.spec.tsx
@@ -41,8 +41,8 @@ vi.mock('@/service/use-tools', () => ({
   useAllWorkflowTools: vi.fn(),
 }))
 
-vi.mock('../change-block-menu-trigger', () => ({
-  ChangeBlockMenuTrigger: () => <div data-testid="node-actions-change-block" />,
+vi.mock('../change-block-popup', () => ({
+  ChangeBlockPopup: () => <div data-testid="node-actions-change-block" />,
 }))
 
 const mockUseNodeMetaData = vi.mocked(useNodeMetaData)
diff --git a/web/app/components/workflow/node-actions-menu/change-block-menu-trigger.tsx b/web/app/components/workflow/node-actions-menu/change-block-popup.tsx
similarity index 58%
rename from web/app/components/workflow/node-actions-menu/change-block-menu-trigger.tsx
rename to web/app/components/workflow/node-actions-menu/change-block-popup.tsx
index 672e60afec1..c911cbdc98b 100644
--- a/web/app/components/workflow/node-actions-menu/change-block-menu-trigger.tsx
+++ b/web/app/components/workflow/node-actions-menu/change-block-popup.tsx
@@ -1,8 +1,9 @@
 import type { CommonNodeType, Node, OnSelectBlock } from '@/app/components/workflow/types'
+import { PopoverClose, PopoverPopup, PopoverTitle } from '@langgenius/dify-ui/popover'
 import { intersection } from 'es-toolkit/array'
-import { useCallback, useMemo } from 'react'
+import { useCallback, useMemo, useRef } from 'react'
 import { useTranslation } from 'react-i18next'
-import BlockSelector from '@/app/components/workflow/block-selector'
+import { BlockSelectorContent } from '@/app/components/workflow/block-selector'
 import { useHooksStore } from '@/app/components/workflow/hooks-store'
 import useNodes from '@/app/components/workflow/store/workflow/use-nodes'
 import { BlockEnum, isTriggerNode } from '@/app/components/workflow/types'
@@ -12,18 +13,22 @@ import { useAvailableBlocks } from '../hooks/use-available-blocks'
 import { useNodesInteractions } from '../hooks/use-nodes-interactions'
 import { useIsChatMode } from '../hooks/use-workflow'
 
-type ChangeBlockMenuTriggerProps = {
+type ChangeBlockPopupProps = {
   nodeId: string
   nodeData: Node['data']
   sourceHandle: string
+  onComplete: () => void
 }
 
-export function ChangeBlockMenuTrigger({
+export function ChangeBlockPopup({
   nodeId,
   nodeData,
   sourceHandle,
-}: ChangeBlockMenuTriggerProps) {
+  onComplete,
+}: ChangeBlockPopupProps) {
   const { t } = useTranslation()
+  const searchInputRef = useRef<HTMLInputElement>(null)
+  const completedRef = useRef(false)
   const { handleNodeChange } = useNodesInteractions()
   const nodeCatalogType = getNodeCatalogType(nodeData)
   const { availablePrevBlocks, availableNextBlocks } = useAvailableBlocks(
@@ -53,33 +58,42 @@ export function ChangeBlockMenuTrigger({
     return availableNextBlocks
   }, [availablePrevBlocks, availableNextBlocks])
 
+  const handleComplete = useCallback(() => {
+    completedRef.current = true
+    onComplete()
+  }, [onComplete])
+
   const handleSelect = useCallback<OnSelectBlock>(
     (type, pluginDefaultValue) => {
+      handleComplete()
       handleNodeChange(nodeId, type, sourceHandle, pluginDefaultValue)
     },
-    [handleNodeChange, nodeId, sourceHandle],
-  )
-
-  const triggerElement = (
-    <button
-      type="button"
-      className="mx-1 flex h-8 w-[calc(100%-8px)] cursor-pointer items-center rounded-lg border-0 bg-transparent px-2 text-left text-sm text-text-secondary outline-hidden select-none hover:bg-state-base-hover focus-visible:bg-state-base-hover focus-visible:outline-hidden"
-    >
-      {t(($) => $['panel.changeBlock'], { ns: 'workflow' })}
-    </button>
+    [handleNodeChange, nodeId, sourceHandle, handleComplete],
   )
 
   return (
-    <BlockSelector
-      onSelect={handleSelect}
-      trigger={triggerElement}
-      popupClassName="min-w-[240px]"
-      availableBlocksTypes={availableNodes}
-      showStartTab={showStartTab}
-      ignoreNodeIds={ignoreNodeIds}
-      forceEnableStartTab={nodeData.type === BlockEnum.Start}
-      allowUserInputSelection={allowStartNodeSelection}
-      isolateKeyboardEvents
-    />
+    <PopoverPopup
+      initialFocus={searchInputRef}
+      finalFocus={() => !completedRef.current}
+      className="w-100 overflow-hidden rounded-xl border-[0.5px] border-components-panel-border bg-components-panel-bg shadow-lg"
+      onKeyDown={(event) => event.stopPropagation()}
+    >
+      <PopoverTitle className="sr-only">
+        {t(($) => $['panel.changeBlock'], { ns: 'workflow' })}
+      </PopoverTitle>
+      <BlockSelectorContent
+        onSelect={handleSelect}
+        onRequestClose={handleComplete}
+        searchInputRef={searchInputRef}
+        availableBlocksTypes={availableNodes}
+        showStartTab={showStartTab}
+        ignoreNodeIds={ignoreNodeIds}
+        forceEnableStartTab={nodeData.type === BlockEnum.Start}
+        allowUserInputSelection={allowStartNodeSelection}
+      />
+      <PopoverClose className="sr-only" tabIndex={-1}>
+        {t(($) => $['operation.close'], { ns: 'common' })}
+      </PopoverClose>
+    </PopoverPopup>
   )
 }
diff --git a/web/app/components/workflow/node-actions-menu/context-menu-content.tsx b/web/app/components/workflow/node-actions-menu/context-menu-content.tsx
index 757c4b89692..7c44fbf8fa5 100644
--- a/web/app/components/workflow/node-actions-menu/context-menu-content.tsx
+++ b/web/app/components/workflow/node-actions-menu/context-menu-content.tsx
@@ -5,8 +5,15 @@ import {
   ContextMenuLinkItem,
   ContextMenuSeparator,
 } from '@langgenius/dify-ui/context-menu'
+import {
+  Popover,
+  PopoverBackdrop,
+  PopoverPortal,
+  PopoverPositioner,
+  PopoverTrigger,
+} from '@langgenius/dify-ui/popover'
 import { useTranslation } from 'react-i18next'
-import { ChangeBlockMenuTrigger } from './change-block-menu-trigger'
+import { ChangeBlockPopup } from './change-block-popup'
 import {
   NODE_ACTIONS_MENU_DELETE_ITEM_CLASS_NAME,
   NODE_ACTIONS_MENU_ITEM_WITH_SHORTCUT_CLASS_NAME,
@@ -33,11 +40,26 @@ export function NodeActionsContextMenuContent(props: NodeActionsMenuProps) {
             <ContextMenuItem onClick={model.handleRun}>{singleRunActionLabel}</ContextMenuItem>
           )}
           {model.canChangeBlock && (
-            <ChangeBlockMenuTrigger
-              nodeId={model.id}
-              nodeData={model.data}
-              sourceHandle={model.sourceHandle}
-            />
+            <Popover modal="trap-focus">
+              <ContextMenuItem
+                closeOnClick={false}
+                render={<PopoverTrigger nativeButton={false} render={<div />} />}
+                className="data-popup-open:bg-state-base-hover"
+              >
+                {t(($) => $['panel.changeBlock'], { ns: 'workflow' })}
+              </ContextMenuItem>
+              <PopoverPortal>
+                <PopoverBackdrop />
+                <PopoverPositioner placement="right-start" positionMethod="fixed">
+                  <ChangeBlockPopup
+                    nodeId={model.id}
+                    nodeData={model.data}
+                    sourceHandle={model.sourceHandle}
+                    onComplete={props.onClose}
+                  />
+                </PopoverPositioner>
+              </PopoverPortal>
+            </Popover>
           )}
         </ContextMenuGroup>
       )}
diff --git a/web/app/components/workflow/node-actions-menu/dropdown-content.tsx b/web/app/components/workflow/node-actions-menu/dropdown-content.tsx
index 2603c805361..25805dc3ce4 100644
--- a/web/app/components/workflow/node-actions-menu/dropdown-content.tsx
+++ b/web/app/components/workflow/node-actions-menu/dropdown-content.tsx
@@ -5,8 +5,15 @@ import {
   DropdownMenuLinkItem,
   DropdownMenuSeparator,
 } from '@langgenius/dify-ui/dropdown-menu'
+import {
+  Popover,
+  PopoverBackdrop,
+  PopoverPortal,
+  PopoverPositioner,
+  PopoverTrigger,
+} from '@langgenius/dify-ui/popover'
 import { useTranslation } from 'react-i18next'
-import { ChangeBlockMenuTrigger } from './change-block-menu-trigger'
+import { ChangeBlockPopup } from './change-block-popup'
 import {
   NODE_ACTIONS_MENU_DELETE_ITEM_CLASS_NAME,
   NODE_ACTIONS_MENU_ITEM_WITH_SHORTCUT_CLASS_NAME,
@@ -33,11 +40,26 @@ export function NodeActionsDropdownContent(props: NodeActionsMenuProps) {
             <DropdownMenuItem onClick={model.handleRun}>{singleRunActionLabel}</DropdownMenuItem>
           )}
           {model.canChangeBlock && (
-            <ChangeBlockMenuTrigger
-              nodeId={model.id}
-              nodeData={model.data}
-              sourceHandle={model.sourceHandle}
-            />
+            <Popover modal="trap-focus">
+              <DropdownMenuItem
+                closeOnClick={false}
+                render={<PopoverTrigger nativeButton={false} render={<div />} />}
+                className="data-popup-open:bg-state-base-hover"
+              >
+                {t(($) => $['panel.changeBlock'], { ns: 'workflow' })}
+              </DropdownMenuItem>
+              <PopoverPortal>
+                <PopoverBackdrop />
+                <PopoverPositioner placement="right-start" positionMethod="fixed">
+                  <ChangeBlockPopup
+                    nodeId={model.id}
+                    nodeData={model.data}
+                    sourceHandle={model.sourceHandle}
+                    onComplete={props.onClose}
+                  />
+                </PopoverPositioner>
+              </PopoverPortal>
+            </Popover>
           )}
         </DropdownMenuGroup>
       )}