diff --git a/api/core/workflow/nodes/variable_assigner/v2/constants.py b/api/core/workflow/nodes/variable_assigner/v2/constants.py
index 7d7922abd..3797bfa77 100644
--- a/api/core/workflow/nodes/variable_assigner/v2/constants.py
+++ b/api/core/workflow/nodes/variable_assigner/v2/constants.py
@@ -8,5 +8,4 @@ EMPTY_VALUE_MAPPING = {
     SegmentType.ARRAY_STRING: [],
     SegmentType.ARRAY_NUMBER: [],
     SegmentType.ARRAY_OBJECT: [],
-    SegmentType.ARRAY_FILE: [],
 }
diff --git a/api/core/workflow/nodes/variable_assigner/v2/helpers.py b/api/core/workflow/nodes/variable_assigner/v2/helpers.py
index f33f40614..8fb2a2738 100644
--- a/api/core/workflow/nodes/variable_assigner/v2/helpers.py
+++ b/api/core/workflow/nodes/variable_assigner/v2/helpers.py
@@ -1,6 +1,5 @@
 from typing import Any
 
-from core.file import File
 from core.variables import SegmentType
 
 from .enums import Operation
@@ -86,8 +85,6 @@ def is_input_value_valid(*, variable_type: SegmentType, operation: Operation, va
             return isinstance(value, int | float)
         case SegmentType.ARRAY_OBJECT if operation == Operation.APPEND:
             return isinstance(value, dict)
-        case SegmentType.ARRAY_FILE if operation == Operation.APPEND:
-            return isinstance(value, File)
 
         # Array & Extend / Overwrite
         case SegmentType.ARRAY_ANY if operation in {Operation.EXTEND, Operation.OVER_WRITE}:
@@ -98,8 +95,6 @@ def is_input_value_valid(*, variable_type: SegmentType, operation: Operation, va
             return isinstance(value, list) and all(isinstance(item, int | float) for item in value)
         case SegmentType.ARRAY_OBJECT if operation in {Operation.EXTEND, Operation.OVER_WRITE}:
             return isinstance(value, list) and all(isinstance(item, dict) for item in value)
-        case SegmentType.ARRAY_FILE if operation in {Operation.EXTEND, Operation.OVER_WRITE}:
-            return isinstance(value, list) and all(isinstance(item, File) for item in value)
 
         case _:
             return False
diff --git a/api/factories/variable_factory.py b/api/factories/variable_factory.py
index 2badb7f50..a41ef4ae4 100644
--- a/api/factories/variable_factory.py
+++ b/api/factories/variable_factory.py
@@ -101,8 +101,6 @@ def _build_variable_from_mapping(*, mapping: Mapping[str, Any], selector: Sequen
             result = ArrayNumberVariable.model_validate(mapping)
         case SegmentType.ARRAY_OBJECT if isinstance(value, list):
             result = ArrayObjectVariable.model_validate(mapping)
-        case SegmentType.ARRAY_FILE if isinstance(value, list):
-            result = ArrayFileVariable.model_validate(mapping)
         case _:
             raise VariableError(f"not supported value type {value_type}")
     if result.size > dify_config.MAX_VARIABLE_SIZE:
diff --git a/web/app/components/workflow/panel/chat-variable-panel/components/variable-modal.tsx b/web/app/components/workflow/panel/chat-variable-panel/components/variable-modal.tsx
index 96f18cd71..d8da0e69a 100644
--- a/web/app/components/workflow/panel/chat-variable-panel/components/variable-modal.tsx
+++ b/web/app/components/workflow/panel/chat-variable-panel/components/variable-modal.tsx
@@ -37,7 +37,6 @@ const typeList = [
   ChatVarType.ArrayString,
   ChatVarType.ArrayNumber,
   ChatVarType.ArrayObject,
-  ChatVarType.ArrayFile,
 ]
 
 const objectPlaceholder = `#  example
@@ -128,7 +127,6 @@ const ChatVariableModal = ({
       case ChatVarType.ArrayString:
       case ChatVarType.ArrayNumber:
       case ChatVarType.ArrayObject:
-      case ChatVarType.ArrayFile:
         return value?.filter(Boolean) || []
     }
   }
@@ -296,86 +294,84 @@ const ChatVariableModal = ({
           </div>
         </div>
         {/* default value */}
-        {type !== ChatVarType.ArrayFile && (
-          <div className='mb-4'>
-            <div className='system-sm-semibold mb-1 flex h-6 items-center justify-between text-text-secondary'>
-              <div>{t('workflow.chatVariable.modal.value')}</div>
-              {(type === ChatVarType.ArrayString || type === ChatVarType.ArrayNumber) && (
-                <Button
-                  variant='ghost'
-                  size='small'
-                  className='text-text-tertiary'
-                  onClick={() => handleEditorChange(!editInJSON)}
-                >
-                  {editInJSON ? <RiInputField className='mr-1 h-3.5 w-3.5' /> : <RiDraftLine className='mr-1 h-3.5 w-3.5' />}
-                  {editInJSON ? t('workflow.chatVariable.modal.oneByOne') : t('workflow.chatVariable.modal.editInJSON')}
-                </Button>
-              )}
-              {type === ChatVarType.Object && (
-                <Button
-                  variant='ghost'
-                  size='small'
-                  className='text-text-tertiary'
-                  onClick={() => handleEditorChange(!editInJSON)}
-                >
-                  {editInJSON ? <RiInputField className='mr-1 h-3.5 w-3.5' /> : <RiDraftLine className='mr-1 h-3.5 w-3.5' />}
-                  {editInJSON ? t('workflow.chatVariable.modal.editInForm') : t('workflow.chatVariable.modal.editInJSON')}
-                </Button>
-              )}
-            </div>
-            <div className='flex'>
-              {type === ChatVarType.String && (
-                // Input will remove \n\r, so use Textarea just like description area
-                <textarea
-                  className='system-sm-regular placeholder:system-sm-regular block h-20 w-full resize-none appearance-none rounded-lg border border-transparent bg-components-input-bg-normal p-2 caret-primary-600 outline-none placeholder:text-components-input-text-placeholder hover:border-components-input-border-hover hover:bg-components-input-bg-hover focus:border-components-input-border-active focus:bg-components-input-bg-active focus:shadow-xs'
-                  value={value}
-                  placeholder={t('workflow.chatVariable.modal.valuePlaceholder') || ''}
-                  onChange={e => setValue(e.target.value)}
-                />
-              )}
-              {type === ChatVarType.Number && (
-                <Input
-                  placeholder={t('workflow.chatVariable.modal.valuePlaceholder') || ''}
-                  value={value}
-                  onChange={e => setValue(Number(e.target.value))}
-                  type='number'
-                />
-              )}
-              {type === ChatVarType.Object && !editInJSON && (
-                <ObjectValueList
-                  list={objectValue}
-                  onChange={setObjectValue}
-                />
-              )}
-              {type === ChatVarType.ArrayString && !editInJSON && (
-                <ArrayValueList
-                  isString
-                  list={value || [undefined]}
-                  onChange={setValue}
-                />
-              )}
-              {type === ChatVarType.ArrayNumber && !editInJSON && (
-                <ArrayValueList
-                  isString={false}
-                  list={value || [undefined]}
-                  onChange={setValue}
-                />
-              )}
-              {editInJSON && (
-                <div className='w-full rounded-[10px] bg-components-input-bg-normal py-2 pl-3 pr-1' style={{ height: editorMinHeight }}>
-                  <CodeEditor
-                    isExpand
-                    noWrapper
-                    language={CodeLanguage.json}
-                    value={editorContent}
-                    placeholder={<div className='whitespace-pre'>{placeholder}</div>}
-                    onChange={handleEditorValueChange}
-                  />
-                </div>
-              )}
-            </div>
+        <div className='mb-4'>
+          <div className='system-sm-semibold mb-1 flex h-6 items-center justify-between text-text-secondary'>
+            <div>{t('workflow.chatVariable.modal.value')}</div>
+            {(type === ChatVarType.ArrayString || type === ChatVarType.ArrayNumber) && (
+              <Button
+                variant='ghost'
+                size='small'
+                className='text-text-tertiary'
+                onClick={() => handleEditorChange(!editInJSON)}
+              >
+                {editInJSON ? <RiInputField className='mr-1 h-3.5 w-3.5' /> : <RiDraftLine className='mr-1 h-3.5 w-3.5' />}
+                {editInJSON ? t('workflow.chatVariable.modal.oneByOne') : t('workflow.chatVariable.modal.editInJSON')}
+              </Button>
+            )}
+            {type === ChatVarType.Object && (
+              <Button
+                variant='ghost'
+                size='small'
+                className='text-text-tertiary'
+                onClick={() => handleEditorChange(!editInJSON)}
+              >
+                {editInJSON ? <RiInputField className='mr-1 h-3.5 w-3.5' /> : <RiDraftLine className='mr-1 h-3.5 w-3.5' />}
+                {editInJSON ? t('workflow.chatVariable.modal.editInForm') : t('workflow.chatVariable.modal.editInJSON')}
+              </Button>
+            )}
           </div>
-        )}
+          <div className='flex'>
+            {type === ChatVarType.String && (
+              // Input will remove \n\r, so use Textarea just like description area
+              <textarea
+                className='system-sm-regular placeholder:system-sm-regular block h-20 w-full resize-none appearance-none rounded-lg border border-transparent bg-components-input-bg-normal p-2 caret-primary-600 outline-none placeholder:text-components-input-text-placeholder hover:border-components-input-border-hover hover:bg-components-input-bg-hover focus:border-components-input-border-active focus:bg-components-input-bg-active focus:shadow-xs'
+                value={value}
+                placeholder={t('workflow.chatVariable.modal.valuePlaceholder') || ''}
+                onChange={e => setValue(e.target.value)}
+              />
+            )}
+            {type === ChatVarType.Number && (
+              <Input
+                placeholder={t('workflow.chatVariable.modal.valuePlaceholder') || ''}
+                value={value}
+                onChange={e => setValue(Number(e.target.value))}
+                type='number'
+              />
+            )}
+            {type === ChatVarType.Object && !editInJSON && (
+              <ObjectValueList
+                list={objectValue}
+                onChange={setObjectValue}
+              />
+            )}
+            {type === ChatVarType.ArrayString && !editInJSON && (
+              <ArrayValueList
+                isString
+                list={value || [undefined]}
+                onChange={setValue}
+              />
+            )}
+            {type === ChatVarType.ArrayNumber && !editInJSON && (
+              <ArrayValueList
+                isString={false}
+                list={value || [undefined]}
+                onChange={setValue}
+              />
+            )}
+            {editInJSON && (
+              <div className='w-full rounded-[10px] bg-components-input-bg-normal py-2 pl-3 pr-1' style={{ height: editorMinHeight }}>
+                <CodeEditor
+                  isExpand
+                  noWrapper
+                  language={CodeLanguage.json}
+                  value={editorContent}
+                  placeholder={<div className='whitespace-pre'>{placeholder}</div>}
+                  onChange={handleEditorValueChange}
+                />
+              </div>
+            )}
+          </div>
+        </div>
         {/* description */}
         <div className=''>
           <div className='system-sm-semibold mb-1 flex h-6 items-center text-text-secondary'>{t('workflow.chatVariable.modal.description')}</div>
diff --git a/web/app/components/workflow/panel/chat-variable-panel/type.ts b/web/app/components/workflow/panel/chat-variable-panel/type.ts
index fc2b779cd..2a4e77646 100644
--- a/web/app/components/workflow/panel/chat-variable-panel/type.ts
+++ b/web/app/components/workflow/panel/chat-variable-panel/type.ts
@@ -5,5 +5,4 @@ export enum ChatVarType {
   ArrayString = 'array[string]',
   ArrayNumber = 'array[number]',
   ArrayObject = 'array[object]',
-  ArrayFile = 'array[file]',
 }