diff --git a/apps/backend/package.json b/apps/backend/package.json
index 2841895f..ab6a7e41 100644
--- a/apps/backend/package.json
+++ b/apps/backend/package.json
@@ -6,9 +6,9 @@
   "scripts": {
     "browser:install": "playwright install chromium",
     "browser:install:linux": "playwright install --with-deps chromium",
-    "agiso:auto-delivery:test": "tsx scripts/test-agiso-auto-delivery.js",
-    "cleanup:dev-data": "tsx scripts/cleanup-dev-data.js",
-    "seed:dev-data": "tsx scripts/seed-dev-data.js",
+    "agiso:auto-delivery:test": "tsx scripts/test-agiso-auto-delivery.ts",
+    "cleanup:dev-data": "tsx scripts/cleanup-dev-data.ts",
+    "seed:dev-data": "tsx scripts/seed-dev-data.ts",
     "build": "tsc -p tsconfig.build.json && rm -rf dist/db/migrations && mkdir -p dist/db && cp -R src/db/migrations dist/db/migrations",
     "db:migrate": "tsx src/db/migrate.ts",
     "dev": "tsx watch --clear-screen=false --include config src/index.ts",
diff --git a/apps/backend/scripts/cleanup-dev-data.js b/apps/backend/scripts/cleanup-dev-data.ts
similarity index 98%
rename from apps/backend/scripts/cleanup-dev-data.js
rename to apps/backend/scripts/cleanup-dev-data.ts
index 3f92bea4..0a9cf007 100644
--- a/apps/backend/scripts/cleanup-dev-data.js
+++ b/apps/backend/scripts/cleanup-dev-data.ts
@@ -70,7 +70,7 @@ function parseArgs(argv) {
 function printHelp() {
   console.log(`
 用法:
-  node scripts/cleanup-dev-data.js [--apply]
+  npm run cleanup:dev-data -- [--apply]
 
 说明:
   基于当前 PostgreSQL fulfillment schema 清空测试业务数据。
diff --git a/apps/backend/scripts/seed-dev-data.js b/apps/backend/scripts/seed-dev-data.ts
similarity index 99%
rename from apps/backend/scripts/seed-dev-data.js
rename to apps/backend/scripts/seed-dev-data.ts
index 50b0f7b9..45444b50 100644
--- a/apps/backend/scripts/seed-dev-data.js
+++ b/apps/backend/scripts/seed-dev-data.ts
@@ -177,7 +177,7 @@ async function ensureSeedBindings() {
       enabled: true,
       priority: binding.priority,
       configJson: JSON.stringify({
-        seededBy: 'scripts/seed-dev-data.js',
+        seededBy: 'scripts/seed-dev-data.ts',
         scenario: binding.skuCode,
       }),
       createdAt: timestamp,
@@ -458,7 +458,7 @@ function parseArgs(argv) {
 function printHelp() {
   console.log(`
 用法:
-  node scripts/seed-dev-data.js [--apply] [--reset]
+  npm run seed:dev-data -- [--apply] [--reset]
 
 说明:
   基于当前 PostgreSQL fulfillment schema 生成一组可重复验证的开发种子数据。
diff --git a/apps/backend/scripts/test-agiso-auto-delivery.js b/apps/backend/scripts/test-agiso-auto-delivery.ts
similarity index 96%
rename from apps/backend/scripts/test-agiso-auto-delivery.js
rename to apps/backend/scripts/test-agiso-auto-delivery.ts
index 2bb53ca6..5dac381b 100644
--- a/apps/backend/scripts/test-agiso-auto-delivery.js
+++ b/apps/backend/scripts/test-agiso-auto-delivery.ts
@@ -260,16 +260,16 @@ function printJson(title, value) {
 
 function printHelp() {
   process.stdout.write(`用法:
-  node scripts/test-agiso-auto-delivery.js <订单号> [--shop-id <店铺ID>] [--poll 0,3,10]
+  npm run agiso:auto-delivery:test -- <订单号> [--shop-id <店铺ID>] [--poll 0,3,10]
 
 说明:
   1. 该脚本只测试正确的发货接口 DummySend。
   2. 会先查 Order/Detail，再调用 DummySend，再按 poll 秒数轮询发货状态。
 
 示例:
-  node scripts/test-agiso-auto-delivery.js 4502285714045005830
-  node scripts/test-agiso-auto-delivery.js 4502285714045005830 --poll 0,5,15
-  node scripts/test-agiso-auto-delivery.js 4502285714045005830 --shop-id 2209880145223
+  npm run agiso:auto-delivery:test -- 4502285714045005830
+  npm run agiso:auto-delivery:test -- 4502285714045005830 --poll 0,5,15
+  npm run agiso:auto-delivery:test -- 4502285714045005830 --shop-id 2209880145223
 `)
 }
 
diff --git a/docs/backend-typescript-migration-plan.md b/docs/backend-typescript-migration-plan.md
index c65ba97a..0c7e2325 100644
--- a/docs/backend-typescript-migration-plan.md
+++ b/docs/backend-typescript-migration-plan.md
@@ -873,6 +873,19 @@
     - `npm run build`
     - `npm test` 共 139 个用例通过
 233. `apps/backend/src` 目录下非测试 `.js` 文件已全部迁移为 `.ts`
+234. 后端开发脚本迁移到 `.ts`：
+    - `scripts/cleanup-dev-data.ts`
+    - `scripts/seed-dev-data.ts`
+    - `scripts/test-agiso-auto-delivery.ts`
+235. `package.json` 中 `cleanup:dev-data`、`seed:dev-data`、`agiso:auto-delivery:test` 已指向 `.ts` 脚本；脚本帮助文案同步改为 npm script 形式
+236. Docker 内验证通过：
+    - `npm run cleanup:dev-data -- --help`
+    - `npm run seed:dev-data -- --help`
+    - `npm run agiso:auto-delivery:test -- --help`
+    - `npm run typecheck`
+    - `npm run build`
+    - `npm test` 共 139 个用例通过
+237. 除 `dist`、`node_modules` 和测试文件外，`apps/backend` 目录下非测试 `.js` 文件已全部迁移为 `.ts`
 
 ## 下一步建议