diff --git a/web/app/components/base/prompt-editor/plugins/hitl-input-block/__tests__/component-ui.spec.tsx b/web/app/components/base/prompt-editor/plugins/hitl-input-block/__tests__/component-ui.spec.tsx
index c1c891a5f4..aa97e32509 100644
--- a/web/app/components/base/prompt-editor/plugins/hitl-input-block/__tests__/component-ui.spec.tsx
+++ b/web/app/components/base/prompt-editor/plugins/hitl-input-block/__tests__/component-ui.spec.tsx
@@ -5,7 +5,8 @@ import type { ValueSelector } from '@/app/components/workflow/types'
 
 import { LexicalComposer } from '@lexical/react/LexicalComposer'
 import { cleanup, fireEvent, render, screen } from '@testing-library/react'
-import { BlockEnum, InputVarType } from '@/app/components/workflow/types'
+import { BlockEnum, InputVarType, SupportUploadFileTypes } from '@/app/components/workflow/types'
+import { TransferMethod } from '@/types/app'
 import HITLInputComponentUI from '../component-ui'
 import { HITLInputNode } from '../node'
 
@@ -215,7 +216,7 @@ describe('HITLInputComponentUI', () => {
   })
 
   describe('Default formInput', () => {
-    it('should pass default payload to InputField when formInput is undefined', async () => {
+    it('should open an empty default editor when formInput is undefined', async () => {
       const { findByRole } = renderComponent({
         formInput: undefined,
       })
@@ -223,10 +224,10 @@ describe('HITLInputComponentUI', () => {
       fireEvent.click(await screen.findByRole('button', { name: 'common.operation.edit' }))
 
       const textbox = await findByRole('textbox')
+      const saveButton = await screen.findByRole('button', { name: 'common.operation.save' })
 
-      fireEvent.click(await screen.findByRole('button', { name: 'common.operation.save' }))
-
-      expect(textbox).toHaveValue('customer_name')
+      expect(textbox).toHaveValue('')
+      expect(saveButton).toBeDisabled()
     })
 
     it('should render variable selector when workflowNodesMap fallback is used', () => {
diff --git a/web/app/components/workflow/nodes/human-input/components/__tests__/single-run-form.spec.tsx b/web/app/components/workflow/nodes/human-input/components/__tests__/single-run-form.spec.tsx
index 13ec9b346d..0c477a9160 100644
--- a/web/app/components/workflow/nodes/human-input/components/__tests__/single-run-form.spec.tsx
+++ b/web/app/components/workflow/nodes/human-input/components/__tests__/single-run-form.spec.tsx
@@ -1,4 +1,5 @@
-import type { ReactNode } from 'react'
+import type { HumanInputFieldValue } from '@/app/components/base/chat/chat/answer/human-input-content/field-renderer'
+import type { FormInputItem } from '@/app/components/workflow/nodes/human-input/types'
 import type { HumanInputFormData } from '@/types/workflow'
 import { render, screen, waitFor } from '@testing-library/react'
 import userEvent from '@testing-library/user-event'
@@ -12,25 +13,54 @@ vi.mock('react-i18next', () => ({
   }),
 }))
 
-vi.mock('@langgenius/dify-ui/button', () => ({
-  Button: ({
-    children,
-    disabled,
-    onClick,
-  }: {
-    children?: ReactNode
-    disabled?: boolean
-    onClick?: () => void
-  }) => (
-    <button type="button" disabled={disabled} onClick={onClick}>
-      {children}
-    </button>
-  ),
-}))
-
 vi.mock('@/app/components/base/chat/chat/answer/human-input-content/content-item', () => ({
   __esModule: true,
-  default: ({ content }: { content: string }) => <div>{content}</div>,
+  default: ({
+    content,
+    formInputFields,
+    inputs,
+    onInputChange,
+  }: {
+    content: string
+    formInputFields: FormInputItem[]
+    inputs: Record<string, HumanInputFieldValue>
+    onInputChange: (name: string, value: HumanInputFieldValue) => void
+  }) => {
+    const fieldName = /\{\{#\$output\.([^#]+)#\}\}/.exec(content)?.[1]
+    if (!fieldName)
+      return <div>{content}</div>
+
+    const field = formInputFields.find(field => field.output_variable_name === fieldName)
+    if (!field)
+      return null
+
+    if (field.type === 'select') {
+      return (
+        <select
+          aria-label={fieldName}
+          value={typeof inputs[fieldName] === 'string' ? inputs[fieldName] : ''}
+          onChange={event => onInputChange(fieldName, event.target.value)}
+        >
+          <option value="">Select</option>
+          {field.option_source.value.map(option => (
+            <option key={option} value={option}>{option}</option>
+          ))}
+        </select>
+      )
+    }
+
+    if (field.type === 'paragraph') {
+      return (
+        <textarea
+          aria-label={fieldName}
+          value={typeof inputs[fieldName] === 'string' ? inputs[fieldName] : ''}
+          onChange={event => onInputChange(fieldName, event.target.value)}
+        />
+      )
+    }
+
+    return <div>{fieldName}</div>
+  },
 }))
 
 const createFormData = (overrides: Partial<HumanInputFormData> = {}): HumanInputFormData => ({
@@ -60,6 +90,10 @@ const createFormData = (overrides: Partial<HumanInputFormData> = {}): HumanInput
 })
 
 describe('SingleRunForm', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
   it('renders the back action as a named button and forwards clicks', async () => {
     const user = userEvent.setup()
     const handleBack = vi.fn()
@@ -99,4 +133,99 @@ describe('SingleRunForm', () => {
       })
     })
   })
+
+  it('submits updated paragraph input values', async () => {
+    const user = userEvent.setup()
+    const onSubmit = vi.fn().mockResolvedValue(undefined)
+
+    render(
+      <SingleRunForm
+        nodeName="Review"
+        data={createFormData()}
+        onSubmit={onSubmit}
+      />,
+    )
+
+    await user.clear(screen.getByRole('textbox', { name: 'review' }))
+    await user.type(screen.getByRole('textbox', { name: 'review' }), 'updated review')
+    await user.click(screen.getByRole('button', { name: 'Approve' }))
+
+    await waitFor(() => {
+      expect(onSubmit).toHaveBeenCalledWith({
+        inputs: { review: 'updated review' },
+        action: 'approve',
+      })
+    })
+  })
+
+  it('uses resolved default values for variable paragraph inputs', async () => {
+    const user = userEvent.setup()
+    const onSubmit = vi.fn().mockResolvedValue(undefined)
+
+    render(
+      <SingleRunForm
+        nodeName="Review"
+        data={createFormData({
+          inputs: [{
+            type: InputVarType.paragraph,
+            output_variable_name: 'review',
+            default: {
+              selector: ['source', 'answer'],
+              type: 'variable',
+              value: 'fallback review',
+            },
+          }],
+          resolved_default_values: {
+            review: 'resolved review',
+          },
+        })}
+        onSubmit={onSubmit}
+      />,
+    )
+
+    await user.click(screen.getByRole('button', { name: 'Approve' }))
+
+    await waitFor(() => {
+      expect(onSubmit).toHaveBeenCalledWith({
+        inputs: { review: 'resolved review' },
+        action: 'approve',
+      })
+    })
+  })
+
+  it('disables submit actions until a select input has a value', async () => {
+    const user = userEvent.setup()
+    const onSubmit = vi.fn().mockResolvedValue(undefined)
+
+    render(
+      <SingleRunForm
+        nodeName="Review"
+        data={createFormData({
+          form_content: 'Choose {{#$output.choice#}}',
+          inputs: [{
+            type: InputVarType.select,
+            output_variable_name: 'choice',
+            option_source: {
+              selector: [],
+              type: 'constant',
+              value: ['approve', 'reject'],
+            },
+          }],
+        })}
+        onSubmit={onSubmit}
+      />,
+    )
+
+    expect(screen.getByRole('button', { name: 'Approve' })).toBeDisabled()
+
+    await user.selectOptions(screen.getByRole('combobox', { name: 'choice' }), 'approve')
+    await user.click(screen.getByRole('button', { name: 'Approve' }))
+
+    await waitFor(() => {
+      expect(onSubmit).toHaveBeenCalledWith({
+        inputs: { choice: 'approve' },
+        action: 'approve',
+      })
+    })
+  })
 })