diff --git a/web/app/components/workflow/nodes/llm/mock.ts b/web/app/components/workflow/nodes/llm/mock.ts
new file mode 100644
index 0000000000..1a2df388da
--- /dev/null
+++ b/web/app/components/workflow/nodes/llm/mock.ts
@@ -0,0 +1,37 @@
+import type { LLMNodeData } from '../../types'
+import { MemoryRole } from '../../types'
+import { Resolution } from '@/types/app'
+
+export const mockLLMNodeData: LLMNodeData = {
+  title: 'Test',
+  desc: 'Test',
+  type: 'Test',
+  model: {
+    provider: 'openai',
+    name: 'gpt-4',
+    mode: 'completion',
+    completion_params: {
+      temperature: 0.7,
+    },
+  },
+  variables: [],
+  prompt: [],
+  memory: {
+    role_prefix: MemoryRole.assistant,
+    window: {
+      enabled: false,
+      size: 0,
+    },
+  },
+  context: {
+    enabled: false,
+    size: 0,
+  },
+  vision: {
+    enabled: false,
+    variable_selector: [],
+    configs: {
+      detail: Resolution.low,
+    },
+  },
+}
diff --git a/web/app/components/workflow/nodes/llm/panel.tsx b/web/app/components/workflow/nodes/llm/panel.tsx
index 7d786fd0a2..12416bf299 100644
--- a/web/app/components/workflow/nodes/llm/panel.tsx
+++ b/web/app/components/workflow/nodes/llm/panel.tsx
@@ -1,13 +1,21 @@
 import type { FC } from 'react'
 import { useTranslation } from 'react-i18next'
 import BasePanel from '../_base/panel'
+import useInput from './use-input'
+import { mockLLMNodeData } from './mock'
 import Field from '@/app/components/workflow/nodes/_base/components/field'
 import AddButton from '@/app/components/base/button/add-button'
 import Split from '@/app/components/workflow/nodes/_base/components/split'
+import ModelSelector from '@/app/components/header/account-setting/model-provider-page/model-selector'
+import { useTextGenerationCurrentProviderAndModelAndModelList } from '@/app/components/header/account-setting/model-provider-page/hooks'
 const i18nPrefix = 'workflow.nodes.llm'
 
 const Panel: FC = () => {
   const { t } = useTranslation()
+  const { inputs, handleModelChanged } = useInput(mockLLMNodeData)
+  const {
+    textGenerationModelList,
+  } = useTextGenerationCurrentProviderAndModelAndModelList()
   const handleAddVariable = () => {
     console.log('add variable')
   }
@@ -18,7 +26,16 @@ const Panel: FC = () => {
           <Field
             title={t(`${i18nPrefix}.model`)}
           >
-            Model Selector
+            <ModelSelector
+              defaultModel={(inputs.model?.provider && inputs.model?.name)
+                ? {
+                  provider: inputs.model.provider,
+                  model: inputs.model.name,
+                }
+                : undefined}
+              modelList={textGenerationModelList}
+              onSelect={handleModelChanged}
+            />
           </Field>
 
           <Field
diff --git a/web/app/components/workflow/nodes/llm/use-input.ts b/web/app/components/workflow/nodes/llm/use-input.ts
new file mode 100644
index 0000000000..44380a4122
--- /dev/null
+++ b/web/app/components/workflow/nodes/llm/use-input.ts
@@ -0,0 +1,26 @@
+import { useCallback, useState } from 'react'
+import produce from 'immer'
+import type { LLMNodeData } from '../../types'
+const useInput = (initInputs: LLMNodeData) => {
+  const [inputs, setInputs] = useState<LLMNodeData>(initInputs)
+
+  const handleModelChanged = useCallback((model: { provider: string; model: string }) => {
+    const newInputs = produce(inputs, (draft) => {
+      draft.model.provider = model.provider
+      draft.model.name = model.model
+    })
+    setInputs(newInputs)
+  }, [inputs.model])
+  return {
+    inputs,
+    setInputs: (key: string, payload: any) => {
+      setInputs({
+        ...inputs,
+        [key]: payload,
+      } as LLMNodeData)
+    },
+    handleModelChanged,
+  }
+}
+
+export default useInput
diff --git a/web/app/components/workflow/types.ts b/web/app/components/workflow/types.ts
index 72d1012973..8a9332c870 100644
--- a/web/app/components/workflow/types.ts
+++ b/web/app/components/workflow/types.ts
@@ -1,5 +1,5 @@
 import type { Node as ReactFlowNode } from 'reactflow'
-
+import type { Resolution } from '@/types/app'
 export type NodeData = {
   type: string
   name?: string
@@ -7,3 +7,62 @@ export type NodeData = {
   description?: string
 }
 export type Node = ReactFlowNode<NodeData>
+
+export type ValueSelector = string[] // [nodeId, key | obj key path]
+
+export type Variable = {
+  variable: string
+  value_selector: ValueSelector
+}
+
+export type ModelConfig = {
+  provider: string
+  name: string
+  mode: string
+  completion_params: Record<string, any>
+}
+
+export enum PromptRole {
+  system = 'system',
+  user = 'user',
+  assistant = 'assistant',
+}
+
+export type PromptItem = {
+  role?: PromptRole
+  text: string
+}
+
+export enum MemoryRole {
+  user = 'user',
+  assistant = 'assistant',
+}
+
+export type Memory = {
+  role_prefix: MemoryRole
+  window: {
+    enabled: boolean
+    size: number
+  }
+}
+
+export type LLMNodeData = {
+  title: string
+  desc: string
+  type: string
+  model: ModelConfig
+  variables: Variable[]
+  prompt: PromptItem[] | PromptItem
+  memory: Memory
+  context: {
+    enabled: boolean
+    size: number
+  }
+  vision: {
+    enabled: boolean
+    variable_selector: ValueSelector
+    configs: {
+      detail: Resolution
+    }
+  }
+}