diff --git a/web/components/flow/add-flow-variable.tsx b/web/components/flow/add-flow-variable.tsx
new file mode 100644
index 000000000..808fd50f4
--- /dev/null
+++ b/web/components/flow/add-flow-variable.tsx
@@ -0,0 +1,151 @@
+import { apiInterceptors, getFlowNodes } from '@/client/api';
+import { IFlowNode } from '@/types/flow';
+import { FLOW_NODES_KEY } from '@/utils';
+import { MinusCircleOutlined, PlusOutlined } from '@ant-design/icons';
+import { Button, Form, Input, Modal } from 'antd';
+import React, { useEffect, useState } from 'react';
+import { useTranslation } from 'react-i18next';
+
+type GroupType = { category: string; categoryLabel: string; nodes: IFlowNode[] };
+
+const AddFlowVariable: React.FC = () => {
+  const { t } = useTranslation();
+  const [operators, setOperators] = useState<Array<IFlowNode>>([]);
+  const [resources, setResources] = useState<Array<IFlowNode>>([]);
+  const [operatorsGroup, setOperatorsGroup] = useState<GroupType[]>([]);
+  const [resourcesGroup, setResourcesGroup] = useState<GroupType[]>([]);
+  const [isModalOpen, setIsModalOpen] = useState(false);
+
+  const showModal = () => {
+    setIsModalOpen(true);
+  };
+
+  useEffect(() => {
+    getNodes();
+  }, []);
+
+  async function getNodes() {
+    const [_, data] = await apiInterceptors(getFlowNodes());
+    if (data && data.length > 0) {
+      localStorage.setItem(FLOW_NODES_KEY, JSON.stringify(data));
+      const operatorNodes = data.filter(node => node.flow_type === 'operator');
+      const resourceNodes = data.filter(node => node.flow_type === 'resource');
+      setOperators(operatorNodes);
+      setResources(resourceNodes);
+      setOperatorsGroup(groupNodes(operatorNodes));
+      setResourcesGroup(groupNodes(resourceNodes));
+    }
+  }
+
+  function groupNodes(data: IFlowNode[]) {
+    const groups: GroupType[] = [];
+    const categoryMap: Record<string, { category: string; categoryLabel: string; nodes: IFlowNode[] }> = {};
+    data.forEach(item => {
+      const { category, category_label } = item;
+      if (!categoryMap[category]) {
+        categoryMap[category] = { category, categoryLabel: category_label, nodes: [] };
+        groups.push(categoryMap[category]);
+      }
+      categoryMap[category].nodes.push(item);
+    });
+    return groups;
+  }
+
+  const formItemLayout = {
+    labelCol: {
+      xs: { span: 24 },
+      sm: { span: 4 },
+    },
+    wrapperCol: {
+      xs: { span: 24 },
+      sm: { span: 20 },
+    },
+  };
+
+  const formItemLayoutWithOutLabel = {
+    wrapperCol: {
+      xs: { span: 24, offset: 0 },
+      sm: { span: 20, offset: 2 },
+    },
+  };
+
+  const onFinish = (values: any) => {
+    console.log('Received values of form:', values);
+  };
+
+  return (
+    <>
+      <Button
+        type='primary'
+        className='flex items-center justify-center rounded-full left-4 top-4'
+        style={{ zIndex: 1050 }}
+        icon={<PlusOutlined />}
+        onClick={showModal}
+      />
+
+      <Modal title={t('Add_Global_Variable_of_Flow')} open={isModalOpen} footer={null}>
+        <Form name='dynamic_form_item' {...formItemLayoutWithOutLabel} onFinish={onFinish} className='mt-8'>
+          <Form.List
+            name='names'
+            rules={[
+              {
+                validator: async (_, names) => {
+                  if (!names || names.length < 2) {
+                    return Promise.reject(new Error('At least 2 passengers'));
+                  }
+                },
+              },
+            ]}
+          >
+            {(fields, { add, remove }, { errors }) => (
+              <>
+                {fields.map((field, index) => (
+                  <Form.Item
+                    {...(index === 0 ? formItemLayout : formItemLayoutWithOutLabel)}
+                    label={index === 0 ? 'Passengers' : ''}
+                    required={false}
+                    key={field.key}
+                  >
+                    <Form.Item
+                      {...field}
+                      validateTrigger={['onChange', 'onBlur']}
+                      rules={[
+                        {
+                          required: true,
+                          whitespace: true,
+                          message: "Please input passenger's name or delete this field.",
+                        },
+                      ]}
+                      noStyle
+                    >
+                      <Input placeholder='passenger name' style={{ width: '60%' }} />
+                    </Form.Item>
+                    {fields.length > 1 ? (
+                      <MinusCircleOutlined className='dynamic-delete-button' onClick={() => remove(field.name)} />
+                    ) : null}
+                  </Form.Item>
+                ))}
+
+                <Form.Item>
+                  <Button type='dashed' onClick={() => add()} className='w-full' icon={<PlusOutlined />}>
+                    Add field
+                  </Button>
+
+                  <Form.ErrorList errors={errors} />
+                </Form.Item>
+              </>
+            )}
+          </Form.List>
+
+          <Form.Item wrapperCol={{ offset: 18, span: 8 }}>
+            <Button type='primary' htmlType='submit'>
+              Submit
+            </Button>
+          </Form.Item>
+        </Form>
+      </Modal>
+    </>
+  );
+};
+
+export default AddFlowVariable;
diff --git a/web/locales/en/flow.ts b/web/locales/en/flow.ts
index fffe4a6a3..396e6d5ee 100644
--- a/web/locales/en/flow.ts
+++ b/web/locales/en/flow.ts
@@ -17,4 +17,5 @@ export const FlowEn = {
   Yes: 'Yes',
   No: 'No',
   Please_Add_Nodes_First: 'Please add nodes first',
+  Add_Global_Variable_of_Flow: 'Add global variable of flow',
 };
diff --git a/web/locales/zh/flow.ts b/web/locales/zh/flow.ts
index 9ce76d733..338c6df50 100644
--- a/web/locales/zh/flow.ts
+++ b/web/locales/zh/flow.ts
@@ -17,4 +17,5 @@ export const FlowZn = {
   Yes: '是',
   No: '否',
   Please_Add_Nodes_First: '请先添加节点',
+  Add_Global_Variable_of_Flow: '添加 Flow 全局变量',
 };
diff --git a/web/new-components/layout/Construct.tsx b/web/new-components/layout/Construct.tsx
index 8d76e62fd..f68ef3ccf 100644
--- a/web/new-components/layout/Construct.tsx
+++ b/web/new-components/layout/Construct.tsx
@@ -12,6 +12,7 @@ import { t } from 'i18next';
 import { useRouter } from 'next/router';
 import React from 'react';
 import './style.css';
+
 function ConstructLayout({ children }: { children: React.ReactNode }) {
   const items = [
     {
@@ -19,6 +20,15 @@ function ConstructLayout({ children }: { children: React.ReactNode }) {
       name: t('App'),
       path: '/app',
       icon: <AppstoreOutlined />,
+      // operations: (
+      //   <Button
+      //     className='border-none text-white bg-button-gradient h-full flex items-center'
+      //     icon={<PlusOutlined className='text-base' />}
+      //     // onClick={handleCreate}
+      //   >
+      //     {t('create_app')}
+      //   </Button>
+      // ),
     },
     {
       key: 'flow',
@@ -102,6 +112,15 @@ function ConstructLayout({ children }: { children: React.ReactNode }) {
           onTabClick={key => {
             router.push(`/construct/${key}`);
           }}
+          // tabBarExtraContent={
+          //   <Button
+          //     className='border-none text-white bg-button-gradient h-full flex items-center'
+          //     icon={<PlusOutlined className='text-base' />}
+          //     // onClick={handleCreate}
+          //   >
+          //     {t('create_app')}
+          //   </Button>
+          // }
         />
       </ConfigProvider>
     </div>
diff --git a/web/pages/construct/flow/canvas/index.tsx b/web/pages/construct/flow/canvas/index.tsx
index 5e5676c66..5957074ea 100644
--- a/web/pages/construct/flow/canvas/index.tsx
+++ b/web/pages/construct/flow/canvas/index.tsx
@@ -17,6 +17,7 @@ import ReactFlow, {
   useReactFlow,
 } from 'reactflow';
 // import AddNodes from '@/components/flow/add-nodes';
+import AddFlowVariable from '@/components/flow/add-flow-variable';
 import AddNodesSider from '@/components/flow/add-nodes-sider';
 import ButtonEdge from '@/components/flow/button-edge';
 import { ExportFlowModal, ImportFlowModal, SaveFlowModal } from '@/components/flow/canvas-modal';
@@ -249,7 +250,9 @@ const Canvas: React.FC = () => {
             >
               <Controls className='flex flex-row items-center' position='bottom-center' />
               <Background color='#aaa' gap={16} />
+
               {/* <AddNodes /> */}
+              <AddFlowVariable />
             </ReactFlow>
           </div>
         </div>