diff --git a/web/app/components/workflow/nodes/_base/components/variable/utils.ts b/web/app/components/workflow/nodes/_base/components/variable/utils.ts
index d8c22f09ec..7e592b9406 100644
--- a/web/app/components/workflow/nodes/_base/components/variable/utils.ts
+++ b/web/app/components/workflow/nodes/_base/components/variable/utils.ts
@@ -15,6 +15,7 @@ import type { ParameterExtractorNodeType } from '../../../parameter-extractor/ty
 import type { IterationNodeType } from '../../../iteration/types'
 import type { ListFilterNodeType } from '../../../list-filter/types'
 import { OUTPUT_FILE_SUB_VARIABLES } from '../../../if-else/default'
+import type { DocExtractorNodeType } from '../../../document-extractor/types'
 import { BlockEnum, InputVarType, VarType } from '@/app/components/workflow/types'
 import type { StartNodeType } from '@/app/components/workflow/nodes/start/types'
 import type { ConversationVariable, EnvironmentVariable, Node, NodeOutPutVar, ValueSelector, Var } from '@/app/components/workflow/types'
@@ -252,7 +253,7 @@ const formatItem = (
       res.vars = [
         {
           variable: 'text',
-          type: VarType.string,
+          type: (data as DocExtractorNodeType).is_array_file ? VarType.arrayString : VarType.string,
         },
       ]
       break
diff --git a/web/app/components/workflow/nodes/document-extractor/default.ts b/web/app/components/workflow/nodes/document-extractor/default.ts
index 21d01abaf7..54045cc52e 100644
--- a/web/app/components/workflow/nodes/document-extractor/default.ts
+++ b/web/app/components/workflow/nodes/document-extractor/default.ts
@@ -7,6 +7,7 @@ const i18nPrefix = 'workflow.errorMsg'
 const nodeDefault: NodeDefault<DocExtractorNodeType> = {
   defaultValue: {
     variable_selector: [],
+    is_array_file: false,
   },
   getAvailablePrevNodes(isChatMode: boolean) {
     const nodes = isChatMode
diff --git a/web/app/components/workflow/nodes/document-extractor/types.ts b/web/app/components/workflow/nodes/document-extractor/types.ts
index 96f29b407e..8ab7592109 100644
--- a/web/app/components/workflow/nodes/document-extractor/types.ts
+++ b/web/app/components/workflow/nodes/document-extractor/types.ts
@@ -2,4 +2,5 @@ import type { CommonNodeType, ValueSelector } from '@/app/components/workflow/ty
 
 export type DocExtractorNodeType = CommonNodeType & {
   variable_selector: ValueSelector
+  is_array_file: boolean
 }
diff --git a/web/app/components/workflow/nodes/document-extractor/use-config.ts b/web/app/components/workflow/nodes/document-extractor/use-config.ts
index e72217e9ad..9406c125f0 100644
--- a/web/app/components/workflow/nodes/document-extractor/use-config.ts
+++ b/web/app/components/workflow/nodes/document-extractor/use-config.ts
@@ -1,28 +1,59 @@
-import { useCallback } from 'react'
+import { useCallback, useMemo } from 'react'
 import produce from 'immer'
+import { useStoreApi } from 'reactflow'
+
 import type { ValueSelector, Var } from '../../types'
 import { VarType } from '../../types'
 import { type DocExtractorNodeType } from './types'
 import useNodeCrud from '@/app/components/workflow/nodes/_base/hooks/use-node-crud'
 import {
+  useIsChatMode,
   useNodesReadOnly,
+  useWorkflow,
+  useWorkflowVariables,
 } from '@/app/components/workflow/hooks'
 
 const useConfig = (id: string, payload: DocExtractorNodeType) => {
   const { nodesReadOnly: readOnly } = useNodesReadOnly()
-
   const { inputs, setInputs } = useNodeCrud<DocExtractorNodeType>(id, payload)
 
+  const filterVar = useCallback((varPayload: Var) => {
+    return varPayload.type === VarType.file || varPayload.type === VarType.arrayFile
+  }, [])
+
+  const isChatMode = useIsChatMode()
+
+  const store = useStoreApi()
+  const { getBeforeNodesInSameBranch } = useWorkflow()
+  const {
+    getNodes,
+  } = store.getState()
+  const currentNode = getNodes().find(n => n.id === id)
+  const isInIteration = payload.isInIteration
+  const iterationNode = isInIteration ? getNodes().find(n => n.id === currentNode!.parentId) : null
+  const availableNodes = useMemo(() => {
+    return getBeforeNodesInSameBranch(id)
+  }, [getBeforeNodesInSameBranch, id])
+
+  const { getCurrentVariableType } = useWorkflowVariables()
+  const getType = useCallback((variable?: ValueSelector) => {
+    const varType = getCurrentVariableType({
+      parentNode: iterationNode,
+      valueSelector: variable || [],
+      availableNodes,
+      isChatMode,
+      isConstant: false,
+    })
+    return varType
+  }, [getCurrentVariableType, availableNodes, isChatMode, iterationNode])
+
   const handleVarChanges = useCallback((variable: ValueSelector | string) => {
     const newInputs = produce(inputs, (draft) => {
       draft.variable_selector = variable as ValueSelector
+      draft.is_array_file = getType(draft.variable_selector) === VarType.arrayFile
     })
     setInputs(newInputs)
-  }, [inputs, setInputs])
-
-  const filterVar = useCallback((varPayload: Var) => {
-    return varPayload.type === VarType.file
-  }, [])
+  }, [getType, inputs, setInputs])
 
   return {
     readOnly,