diff --git a/web/app/components/workflow/nodes/_base/components/variable/object-children-tree-panel.tsx b/web/app/components/workflow/nodes/_base/components/variable/object-children-tree-panel.tsx
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/web/app/components/workflow/nodes/llm/mock-struct-data.ts b/web/app/components/workflow/nodes/llm/mock-struct-data.ts
new file mode 100644
index 0000000000..f9c4f2e4cc
--- /dev/null
+++ b/web/app/components/workflow/nodes/llm/mock-struct-data.ts
@@ -0,0 +1,54 @@
+import { type StructuredOutput, Type } from './types'
+
+const data: StructuredOutput = {
+  schema: {
+    type: Type.object,
+    properties: {
+      string_field: {
+        type: Type.string,
+        description: '可为空',
+      },
+      obj_field: {
+        type: Type.object,
+        properties: {
+          string_field_1: {
+            type: Type.string,
+            description: '描述可为空',
+          },
+          number_field_2: {
+            type: Type.number,
+            description: '描述可为空',
+          },
+          array_field_4: {
+            type: Type.array,
+            items: {
+              type: Type.string,
+            },
+          },
+          boolean_field_5: {
+            type: Type.boolean,
+            description: '描述可为空',
+          },
+        },
+        required: [
+          'string_field_1',
+          'number_field_2',
+          'enum_field_3',
+          'array_field_4',
+          'boolean_field_5',
+        ],
+        additionalProperties: false,
+      },
+    },
+    required: [
+      'string_field_1',
+      'number_field_2',
+      'enum_field_3',
+      'array_field_4',
+      'boolean_field_5',
+    ],
+    additionalProperties: false,
+  },
+}
+
+export default data
diff --git a/web/app/components/workflow/nodes/llm/types.ts b/web/app/components/workflow/nodes/llm/types.ts
index a7774fca2e..e96cd55e20 100644
--- a/web/app/components/workflow/nodes/llm/types.ts
+++ b/web/app/components/workflow/nodes/llm/types.ts
@@ -16,3 +16,35 @@ export type LLMNodeType = CommonNodeType & {
     configs?: VisionSetting
   }
 }
+
+export enum Type {
+  string = 'string',
+  number = 'number',
+  boolean = 'boolean',
+  object = 'object',
+  array = 'array',
+}
+
+type ArrayItemType = Exclude<Type, Type.array>
+
+export type Field = {
+  type: Type
+  properties?: { // Object has properties
+    [key: string]: Field
+  }
+  required?: string[] // Key of required properties in object
+  description?: string
+  items?: { // Array has items. Define the item type
+    type: ArrayItemType
+  }
+  additionalProperties?: false // Required in object by api. Just set false
+}
+
+export type StructuredOutput = {
+  schema: {
+    type: Type.object,
+    properties: Record<string, Field>
+    required: string[]
+    additionalProperties: false
+  }
+}