diff --git a/frontend/app/features/schedules/NodeInspector.tsx b/frontend/app/features/schedules/NodeInspector.tsx
index dc0d0c5..9a61093 100644
--- a/frontend/app/features/schedules/NodeInspector.tsx
+++ b/frontend/app/features/schedules/NodeInspector.tsx
@@ -1,15 +1,7 @@
 import { type ScheduleNode } from "../../services/api";
 import Icon from "../../components/common/Icon";
 import { shortHash } from "./utils";
-
-type NodeForm = {
-  nodeName: string;
-  timeoutSeconds: string;
-  retryCount: string;
-  retryIntervalSec: string;
-  argumentsJson: string;
-  envRefsJson: string;
-};
+import { PYTHON_VERSION_OPTIONS, type NodeForm } from "./state/schedulesStore";
 
 export function NodeInspector({
   node,
@@ -88,18 +80,36 @@ export function NodeInspector({
             />
           </label>
         </div>
-        <label>
-          <span>重试间隔（秒）</span>
-          <input
-            type="number"
-            min="0"
-            value={form.retryIntervalSec}
-            onChange={(event) => onChange({
-              ...form,
-              retryIntervalSec: event.target.value,
-            })}
-          />
-        </label>
+        <div className="inspector-grid">
+          <label>
+            <span>重试间隔（秒）</span>
+            <input
+              type="number"
+              min="0"
+              value={form.retryIntervalSec}
+              onChange={(event) => onChange({
+                ...form,
+                retryIntervalSec: event.target.value,
+              })}
+            />
+          </label>
+          <label>
+            <span>Python 版本</span>
+            <select
+              value={form.pythonVersion}
+              onChange={(event) => onChange({
+                ...form,
+                pythonVersion: event.target.value as NodeForm["pythonVersion"],
+              })}
+            >
+              {PYTHON_VERSION_OPTIONS.map((option) => (
+                <option key={option} value={option}>
+                  {option}
+                </option>
+              ))}
+            </select>
+          </label>
+        </div>
       </section>
       <section>
         <h3>运行参数</h3>
diff --git a/frontend/app/features/schedules/constants.ts b/frontend/app/features/schedules/constants.ts
index a272801..1541b76 100644
--- a/frontend/app/features/schedules/constants.ts
+++ b/frontend/app/features/schedules/constants.ts
@@ -24,6 +24,7 @@ export const EMPTY_NODE_FORM = {
   retryIntervalSec: "5",
   argumentsJson: "{}",
   envRefsJson: "{}",
+  pythonVersion: "3.12" as "3.8" | "3.10" | "3.12",
 };
 
 export const RUN_STATUS_LABELS: Record<string, string> = {
diff --git a/frontend/app/features/schedules/state/schedulesStore.ts b/frontend/app/features/schedules/state/schedulesStore.ts
index c9870aa..d2adf39 100644
--- a/frontend/app/features/schedules/state/schedulesStore.ts
+++ b/frontend/app/features/schedules/state/schedulesStore.ts
@@ -33,6 +33,14 @@ export type ScheduleForm = {
   failurePolicy: "stop" | "continue";
 };
 
+export type PythonVersion = "3.8" | "3.10" | "3.12";
+
+export const PYTHON_VERSION_OPTIONS: readonly PythonVersion[] = [
+  "3.8",
+  "3.10",
+  "3.12",
+];
+
 export type NodeForm = {
   nodeName: string;
   timeoutSeconds: string;
@@ -40,6 +48,7 @@ export type NodeForm = {
   retryIntervalSec: string;
   argumentsJson: string;
   envRefsJson: string;
+  pythonVersion: PythonVersion;
 };
 
 export type NodePositionDraft = {
@@ -77,6 +86,7 @@ export const EMPTY_NODE_FORM: NodeForm = {
   retryIntervalSec: "5",
   argumentsJson: "{}",
   envRefsJson: "{}",
+  pythonVersion: "3.12",
 };
 
 // ---- Module-level non-reactive holders ----
@@ -124,6 +134,7 @@ function nodeToForm(node: ScheduleNode): NodeForm {
     retryIntervalSec: String(node.retry_interval_sec),
     argumentsJson: JSON.stringify(node.arguments_json ?? {}, null, 2),
     envRefsJson: JSON.stringify(node.env_refs_json ?? {}, null, 2),
+    pythonVersion: (node.python_version ?? "3.12") as PythonVersion,
   };
 }
 
@@ -855,6 +866,7 @@ export const useSchedulesStore = create<State & Actions>((set, get) => {
           position_y: Math.max(20, Math.round(positionY)),
           arguments_json: {},
           env_refs_json: {},
+          python_version: "3.12",
         }),
         `${artifact.script_name} 已加入画布`,
       );
@@ -883,6 +895,9 @@ export const useSchedulesStore = create<State & Actions>((set, get) => {
         if (!Number.isInteger(retryIntervalSec) || retryIntervalSec < 0) {
           throw new Error("重试间隔必须是非负整数");
         }
+        if (!PYTHON_VERSION_OPTIONS.includes(nodeForm.pythonVersion)) {
+          throw new Error("Python 版本必须是 3.8 / 3.10 / 3.12");
+        }
         const argumentsJson = parseObject(nodeForm.argumentsJson, "运行参数");
         const rawEnv = parseObject(nodeForm.envRefsJson, "环境引用");
         const envRefsJson = Object.fromEntries(
@@ -907,6 +922,7 @@ export const useSchedulesStore = create<State & Actions>((set, get) => {
                 retry_interval_sec: retryIntervalSec,
                 arguments_json: argumentsJson,
                 env_refs_json: envRefsJson,
+                python_version: nodeForm.pythonVersion,
               },
             ),
           "节点配置已保存",
diff --git a/frontend/app/features/schedules/utils.ts b/frontend/app/features/schedules/utils.ts
index befb897..7a2822b 100644
--- a/frontend/app/features/schedules/utils.ts
+++ b/frontend/app/features/schedules/utils.ts
@@ -6,6 +6,7 @@ import {
   type ScheduleRunSummary,
 } from "../../services/api";
 import { EMPTY_SCHEDULE_FORM, EMPTY_NODE_FORM } from "./constants";
+import type { NodeForm } from "./state/schedulesStore";
 
 export function formatTime(value: string | null): string {
   if (!value) return "尚未执行";
@@ -82,7 +83,7 @@ export function scheduleToForm(schedule: Schedule) {
   };
 }
 
-export function nodeToForm(node: ScheduleNode) {
+export function nodeToForm(node: ScheduleNode): NodeForm {
   return {
     nodeName: node.node_name,
     timeoutSeconds: String(node.timeout_seconds),
@@ -90,6 +91,7 @@ export function nodeToForm(node: ScheduleNode) {
     retryIntervalSec: String(node.retry_interval_sec),
     argumentsJson: JSON.stringify(node.arguments_json ?? {}, null, 2),
     envRefsJson: JSON.stringify(node.env_refs_json ?? {}, null, 2),
+    pythonVersion: node.python_version ?? "3.12",
   };
 }
 
diff --git a/frontend/app/services/api.ts b/frontend/app/services/api.ts
index bef60ae..8e4601a 100644
--- a/frontend/app/services/api.ts
+++ b/frontend/app/services/api.ts
@@ -658,6 +658,8 @@ export type ScheduleArtifact = {
   created_at: string;
 };
 
+export type PythonVersion = "3.8" | "3.10" | "3.12";
+
 export type ScheduleNode = {
   node_id: string;
   schedule_id: string;
@@ -671,6 +673,7 @@ export type ScheduleNode = {
   position_y: number;
   arguments_json: Record<string, unknown>;
   env_refs_json: Record<string, string>;
+  python_version: PythonVersion;
   created_at: string;
   updated_at: string;
   version: {
@@ -1093,6 +1096,7 @@ export async function createScheduleNode(
     position_y?: number;
     arguments_json?: Record<string, unknown>;
     env_refs_json?: Record<string, string>;
+    python_version?: PythonVersion;
   },
 ): Promise<Schedule> {
   return apiRequest<Schedule>(
@@ -1117,6 +1121,7 @@ export async function updateScheduleNode(
     position_y?: number;
     arguments_json?: Record<string, unknown>;
     env_refs_json?: Record<string, string>;
+    python_version?: PythonVersion;
   },
 ): Promise<Schedule> {
   return apiRequest<Schedule>(