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 7299bcb34e..e6434cd8c5 100644
--- a/web/app/components/workflow/nodes/_base/components/variable/utils.ts
+++ b/web/app/components/workflow/nodes/_base/components/variable/utils.ts
@@ -57,7 +57,14 @@ const inputVarTypeToVarType = (type: InputVarType): VarType => {
   } as any)[type] || VarType.string
 }
 
-const structTypeToVarType = (type: Type): VarType => {
+const structTypeToVarType = (type: Type, isArray?: boolean): VarType => {
+  if (isArray) {
+    return ({
+      [Type.string]: VarType.arrayString,
+      [Type.number]: VarType.arrayNumber,
+      [Type.object]: VarType.arrayObject,
+    } as any)[type] || VarType.string
+  }
   return ({
     [Type.string]: VarType.string,
     [Type.number]: VarType.number,
@@ -82,9 +89,12 @@ const findExceptVarInStructuredProperties = (properties: Record<string, StructFi
     Object.keys(properties).forEach((key) => {
       const item = properties[key]
       const isObj = item.type === Type.object
+      const isArray = item.type === Type.array
+      const arrayType = item.items?.type
+
       if (!isObj && !filterVar({
         variable: key,
-        type: structTypeToVarType(item.type),
+        type: structTypeToVarType(isArray ? arrayType! : item.type, isArray),
       }, [key])) {
         delete properties[key]
         return
@@ -103,9 +113,11 @@ const findExceptVarInStructuredOutput = (structuredOutput: StructuredOutput, fil
     Object.keys(properties).forEach((key) => {
       const item = properties[key]
       const isObj = item.type === Type.object
+      const isArray = item.type === Type.array
+      const arrayType = item.items?.type
       if (!isObj && !filterVar({
         variable: key,
-        type: structTypeToVarType(item.type),
+        type: structTypeToVarType(isArray ? arrayType! : item.type, isArray),
       }, [key])) {
         delete properties[key]
         return
@@ -1314,9 +1326,12 @@ const varToValueSelectorList = (v: Var, parentValueSelector: ValueSelector, res:
   }
   if (isStructuredOutput) {
     Object.keys((v.children as StructuredOutput)?.schema?.properties || {}).forEach((key) => {
+      const type = (v.children as StructuredOutput)?.schema?.properties[key].type
+      const isArray = type === Type.array
+      const arrayType = (v.children as StructuredOutput)?.schema?.properties[key].items?.type
       varToValueSelectorList({
         variable: key,
-        type: structTypeToVarType((v.children as StructuredOutput)?.schema?.properties[key].type),
+        type: structTypeToVarType(isArray ? arrayType! : type, isArray),
       }, [...parentValueSelector, v.variable], res)
     })
   }
diff --git a/web/app/components/workflow/nodes/llm/types.ts b/web/app/components/workflow/nodes/llm/types.ts
index a4931f7017..c1d33a2e92 100644
--- a/web/app/components/workflow/nodes/llm/types.ts
+++ b/web/app/components/workflow/nodes/llm/types.ts
@@ -25,6 +25,9 @@ export enum Type {
   boolean = 'boolean',
   object = 'object',
   array = 'array',
+  arrayString = 'array[string]',
+  arrayNumber = 'array[number]',
+  arrayObject = 'array[object]',
 }
 
 export enum ArrayType {