diff --git a/web/app/components/workflow/header/checklist/__tests__/index.spec.tsx b/web/app/components/workflow/header/checklist/__tests__/index.spec.tsx
index 25150e2d04..934dcc490f 100644
--- a/web/app/components/workflow/header/checklist/__tests__/index.spec.tsx
+++ b/web/app/components/workflow/header/checklist/__tests__/index.spec.tsx
@@ -54,6 +54,8 @@ vi.mock('@langgenius/dify-ui/popover', () => ({
   },
   PopoverTrigger: ({ render }: { render: ReactNode }) => <>{render}</>,
   PopoverContent: ({ children }: { children: ReactNode }) => <div>{children}</div>,
+  PopoverTitle: ({ children, className }: { children: ReactNode, className?: string }) => <h2 className={className}>{children}</h2>,
+  PopoverDescription: ({ children, className }: { children: ReactNode, className?: string }) => <p className={className}>{children}</p>,
   PopoverClose: ({ children, className }: { children: ReactNode, className?: string }) => <button className={className}>{children}</button>,
 }))
 
diff --git a/web/app/components/workflow/header/checklist/__tests__/node-group.spec.tsx b/web/app/components/workflow/header/checklist/__tests__/node-group.spec.tsx
index d574dda0ac..a84ddd06af 100644
--- a/web/app/components/workflow/header/checklist/__tests__/node-group.spec.tsx
+++ b/web/app/components/workflow/header/checklist/__tests__/node-group.spec.tsx
@@ -36,6 +36,7 @@ describe('ChecklistNodeGroup', () => {
     expect(screen.getByText('Needs configuration')).toBeInTheDocument()
     expect(screen.getByText(/needConnectTip/i)).toBeInTheDocument()
     expect(screen.getAllByText(/goToFix/i)).toHaveLength(2)
+    expect(screen.getByRole('button', { name: /Needs configuration/i })).toHaveAttribute('title', 'Needs configuration')
 
     fireEvent.click(screen.getByText('Needs configuration'))
 
@@ -57,5 +58,7 @@ describe('ChecklistNodeGroup', () => {
 
     expect(onItemClick).not.toHaveBeenCalled()
     expect(screen.queryByText(/goToFix/i)).not.toBeInTheDocument()
+    expect(screen.queryByRole('button', { name: /Needs configuration/i })).not.toBeInTheDocument()
+    expect(screen.getByText('Needs configuration').parentElement).toHaveAttribute('title', 'Needs configuration')
   })
 })
diff --git a/web/app/components/workflow/header/checklist/index.tsx b/web/app/components/workflow/header/checklist/index.tsx
index 9a54175c8c..1e4303d401 100644
--- a/web/app/components/workflow/header/checklist/index.tsx
+++ b/web/app/components/workflow/header/checklist/index.tsx
@@ -7,6 +7,8 @@ import {
   Popover,
   PopoverClose,
   PopoverContent,
+  PopoverDescription,
+  PopoverTitle,
   PopoverTrigger,
 } from '@langgenius/dify-ui/popover'
 import {
@@ -43,6 +45,7 @@ const WorkflowChecklist = ({
   const nodes = useNodes()
   const needWarningNodes = useChecklist(nodes, edges)
   const { handleNodeSelect } = useNodesInteractions()
+  const checklistLabel = t('panel.checklist', { ns: 'workflow' })
 
   const { pluginItems, nodeItems } = useMemo(() => {
     const plugins: ChecklistItem[] = []
@@ -75,12 +78,14 @@ const WorkflowChecklist = ({
               disabled && 'cursor-not-allowed opacity-50',
             )}
             disabled={disabled || undefined}
+            aria-label={checklistLabel}
           >
             <span
               className={cn('group flex h-full w-full items-center justify-center rounded-md hover:bg-state-accent-hover', open && 'bg-state-accent-hover')}
             >
               <span
                 className={cn('i-ri-list-check-3 h-4 w-4 group-hover:text-components-button-secondary-accent-text', open ? 'text-components-button-secondary-accent-text' : 'text-components-button-ghost-text')}
+                aria-hidden="true"
               />
             </span>
             {!!needWarningNodes.length && (
@@ -104,19 +109,22 @@ const WorkflowChecklist = ({
           <div className="flex flex-col gap-0.5 px-3 pt-3.5 pb-1">
             <div className="flex items-start px-1">
               <div className="min-w-0 grow pr-8">
-                <h2 className="text-base leading-6 font-semibold text-text-primary">
-                  {t('panel.checklist', { ns: 'workflow' })}
+                <PopoverTitle className="text-base leading-6 font-semibold text-text-primary">
+                  {checklistLabel}
                   {needWarningNodes.length > 0 && `(${needWarningNodes.length})`}
-                </h2>
+                </PopoverTitle>
               </div>
-              <PopoverClose className="-mt-0.5 -mr-0.5 flex size-7 shrink-0 items-center justify-center rounded-lg">
-                <span className="i-ri-close-line size-4 text-text-tertiary" />
+              <PopoverClose
+                className="-mt-0.5 -mr-0.5 flex size-7 shrink-0 items-center justify-center rounded-lg"
+                aria-label={t('operation.close', { ns: 'common' })}
+              >
+                <span className="i-ri-close-line size-4 text-text-tertiary" aria-hidden="true" />
               </PopoverClose>
             </div>
             {needWarningNodes.length > 0 && (
-              <p className="px-1 text-xs leading-4 text-text-tertiary">
+              <PopoverDescription className="px-1 text-xs leading-4 text-text-tertiary">
                 {t('panel.checklistDescription', { ns: 'workflow' })}
-              </p>
+              </PopoverDescription>
             )}
           </div>
 
diff --git a/web/app/components/workflow/header/checklist/node-group.tsx b/web/app/components/workflow/header/checklist/node-group.tsx
index a161c6cb87..05987b632e 100644
--- a/web/app/components/workflow/header/checklist/node-group.tsx
+++ b/web/app/components/workflow/header/checklist/node-group.tsx
@@ -45,29 +45,48 @@ export const ChecklistNodeGroup = memo(({
         </span>
       </div>
       <div className="p-1">
-        {subItems.map(sub => (
-          <div
-            key={sub.key}
-            className={cn(
-              'group/item flex items-start gap-2 rounded-lg px-1',
-              goToEnabled && 'cursor-pointer hover:bg-state-base-hover',
-            )}
-            onClick={() => goToEnabled && onItemClick(item)}
-          >
-            <ItemIndicator />
-            <span className="min-w-0 grow py-1 text-xs leading-4 text-text-warning">
-              {sub.message}
-            </span>
-            {goToEnabled && (
-              <div className="flex shrink-0 items-center gap-0.5 pt-1 pr-0.5 opacity-0 transition-opacity duration-150 group-hover/item:opacity-100">
-                <span className="text-xs leading-4 font-medium whitespace-nowrap text-text-accent">
-                  {t('panel.goToFix', { ns: 'workflow' })}
-                </span>
-                <span className="i-ri-arrow-right-line size-3.5 text-text-accent" />
-              </div>
-            )}
-          </div>
-        ))}
+        {subItems.map((sub) => {
+          const content = (
+            <>
+              <ItemIndicator />
+              <span className="min-w-0 grow truncate text-xs leading-4 text-text-warning">
+                {sub.message}
+              </span>
+              {goToEnabled && (
+                <div className="flex shrink-0 items-center gap-0.5 pr-0.5 opacity-0 transition-opacity duration-150 group-hover/item:opacity-100">
+                  <span className="text-xs leading-4 font-medium whitespace-nowrap text-text-accent">
+                    {t('panel.goToFix', { ns: 'workflow' })}
+                  </span>
+                  <span className="i-ri-arrow-right-line size-3.5 text-text-accent" aria-hidden="true" />
+                </div>
+              )}
+            </>
+          )
+          const className = cn(
+            'group/item flex w-full items-center gap-2 rounded-lg px-1 text-left',
+            goToEnabled && 'cursor-pointer hover:bg-state-base-hover',
+          )
+
+          if (goToEnabled) {
+            return (
+              <button
+                key={sub.key}
+                type="button"
+                className={cn(className, 'border-none bg-transparent')}
+                title={sub.message}
+                onClick={() => onItemClick(item)}
+              >
+                {content}
+              </button>
+            )
+          }
+
+          return (
+            <div key={sub.key} className={className} title={sub.message}>
+              {content}
+            </div>
+          )
+        })}
       </div>
     </div>
   )