diff --git a/apps/backend/src/services/platforms/agiso/xianyu/order-detail-service.js b/apps/backend/src/services/platforms/agiso/xianyu/order-detail-service.ts
similarity index 86%
rename from apps/backend/src/services/platforms/agiso/xianyu/order-detail-service.js
rename to apps/backend/src/services/platforms/agiso/xianyu/order-detail-service.ts
index 0e9d3b71..3905e842 100644
--- a/apps/backend/src/services/platforms/agiso/xianyu/order-detail-service.js
+++ b/apps/backend/src/services/platforms/agiso/xianyu/order-detail-service.ts
@@ -1,5 +1,3 @@
-// @ts-nocheck
-
 import crypto from 'node:crypto'
 
 import { runtimeConfig } from '../../../../config/runtime.js'
@@ -11,11 +9,113 @@ import { parseJsonObject } from '../../../../utils/json.js'
 
 const DEFAULT_DETAIL_TIMEOUT_MS = 5000
 
-export async function enrichAgisoXianyuTradeOrder(parsed, { requestId = '' } = {}) {
+type JsonObject = Record<string, unknown>
+
+type AgisoParsedTrade = {
+  provider?: string
+  platform?: string
+  shopId?: string
+  shopName?: string
+  platformOrderId?: string
+  totalAmount?: number
+  paidAt?: string | null
+  buyerId?: string
+  buyerName?: string
+  receiverContact?: string
+  rawPayload?: JsonObject
+  items?: AgisoOrderItem[]
+  [key: string]: unknown
+}
+
+type AgisoOrderItem = {
+  skuCode: string
+  skuName: string
+  externalItemId: string
+  externalSkuCode: string
+  externalSkuName: string
+  quantity: number
+  spec: JsonObject
+  snapshot: {
+    externalItemId: string
+    externalSkuCode: string
+    externalSkuName: string
+  }
+}
+
+type AgisoDetailQueryInput = {
+  shopId?: string
+  platformOrderId?: string
+  requestId?: string
+}
+
+type FetchResponseLike = {
+  status: number
+  text: () => Promise<string>
+}
+
+type FetchWithTimeout = (
+  url: string,
+  options: RequestInit,
+  timeoutMs: number,
+) => Promise<FetchResponseLike>
+
+type AgisoDetailDeps = {
+  fetchWithTimeout?: FetchWithTimeout
+  queryAgisoXianyuOrderDetail?: (
+    input: Required<AgisoDetailQueryInput>,
+  ) => Promise<AgisoDetailResult>
+}
+
+type AgisoTradeDetailConfig = {
+  endpoint: string
+  apiVersion: string
+  accessToken: string
+  appSecret: string
+  timeoutMs: number
+}
+
+type AgisoShopConfig = {
+  accessToken?: string
+  appSecret?: string
+  tradeDetailEndpoint?: string
+  tradeDetailApiVersion?: string
+  tradeDetailTimeoutMs?: string | number
+}
+
+type DeliveryState = {
+  shipped: boolean
+  shipTime: number
+  orderStatus: number
+}
+
+type AgisoDetailResult = {
+  success: boolean
+  reason: string
+  errorMessage: string
+  responseStatus: number
+  payload: JsonObject
+  detailPayload: JsonObject
+  totalAmountFen: number
+  shipped: boolean
+  shipTime: number
+  orderStatus: number
+}
+
+type ExternalSkuDescriptor = {
+  raw: string
+  externalSkuCode: string
+  externalSkuName: string
+}
+
+export async function enrichAgisoXianyuTradeOrder(parsed: AgisoParsedTrade, { requestId = '' } = {}) {
   return enrichAgisoXianyuTradeOrderWithDeps(parsed, { requestId })
 }
 
-export async function enrichAgisoXianyuTradeOrderWithDeps(parsed, { requestId = '' } = {}, deps = {}) {
+export async function enrichAgisoXianyuTradeOrderWithDeps(
+  parsed: AgisoParsedTrade,
+  { requestId = '' } = {},
+  deps: AgisoDetailDeps = {},
+) {
   const queryOrderDetail = deps.queryAgisoXianyuOrderDetail || queryAgisoXianyuOrderDetail
 
   if (!shouldHydrateAgisoXianyuTradeOrder(parsed)) {
@@ -69,8 +169,8 @@ export async function queryAgisoXianyuOrderDetail({ shopId = '', platformOrderId
 
 export async function queryAgisoXianyuOrderDetailWithDeps(
   { shopId = '', platformOrderId = '', requestId = '' } = {},
-  deps = {},
-) {
+  deps: AgisoDetailDeps = {},
+): Promise<AgisoDetailResult> {
   const requestWithTimeout = deps.fetchWithTimeout || fetchWithTimeout
   const normalizedShopId = String(shopId || '').trim()
   const normalizedPlatformOrderId = String(platformOrderId || '').trim()
@@ -114,7 +214,7 @@ export async function queryAgisoXianyuOrderDetailWithDeps(
       body: new URLSearchParams(requestBody).toString(),
     }, config.timeoutMs)
     const rawText = await response.text()
-    const payload = parseJsonObject(rawText, { preserveLargeIntegers: true })
+    const payload = parseJsonObject(rawText, { preserveLargeIntegers: true }) as JsonObject
     const detailPayload = extractAgisoDetailPayload(payload)
     const delivery = resolveAgisoXianyuOrderDeliveryState(detailPayload)
     const totalAmountFen = resolveTotalAmountFen(detailPayload)
@@ -216,16 +316,16 @@ export async function queryAgisoXianyuOrderDetailWithDeps(
   }
 }
 
-function shouldHydrateAgisoXianyuTradeOrder(parsed) {
+function shouldHydrateAgisoXianyuTradeOrder(parsed: AgisoParsedTrade | null | undefined): boolean {
   return parsed?.provider === 'agiso'
     && parsed?.platform === 'xianyu'
     && String(parsed?.platformOrderId || '').trim()
     && Number(parsed?.totalAmount || 0) <= 0
 }
 
-function resolveAgisoXianyuTradeDetailConfig(shopId) {
-  const baseConfig = runtimeConfig.platforms?.agiso?.tradeDetail || {}
-  const shopConfig = getAgisoShopConfig(shopId) || {}
+function resolveAgisoXianyuTradeDetailConfig(shopId: string): AgisoTradeDetailConfig {
+  const baseConfig = runtimeConfig.platforms.agiso.tradeDetail
+  const shopConfig = (getAgisoShopConfig(shopId) || {}) as AgisoShopConfig
 
   return {
     endpoint: String(shopConfig.tradeDetailEndpoint || baseConfig.endpoint || '').trim(),
@@ -236,7 +336,10 @@ function resolveAgisoXianyuTradeDetailConfig(shopId) {
   }
 }
 
-function buildRequestHeaders({ accessToken, apiVersion }) {
+function buildRequestHeaders({
+  accessToken,
+  apiVersion,
+}: { accessToken: string; apiVersion: string }): Record<string, string> {
   return {
     Authorization: `Bearer ${accessToken}`,
     ApiVersion: apiVersion,
@@ -244,9 +347,12 @@ function buildRequestHeaders({ accessToken, apiVersion }) {
   }
 }
 
-function buildRequestBody({ platformOrderId, appSecret }) {
+function buildRequestBody({
+  platformOrderId,
+  appSecret,
+}: { platformOrderId: string; appSecret: string }): Record<string, string> {
   const timestamp = String(Math.floor(Date.now() / 1000))
-  const payload = {
+  const payload: Record<string, string> = {
     tid: String(platformOrderId || '').trim(),
     timestamp,
   }
@@ -255,7 +361,7 @@ function buildRequestBody({ platformOrderId, appSecret }) {
   return payload
 }
 
-function generateSign(params, appSecret) {
+function generateSign(params: Record<string, string>, appSecret: string): string {
   const sortedEntries = Object.entries(params).sort(([left], [right]) => left.localeCompare(right))
   let raw = appSecret
 
diff --git a/docs/backend-typescript-migration-plan.md b/docs/backend-typescript-migration-plan.md
index 53569525..07394dfa 100644
--- a/docs/backend-typescript-migration-plan.md
+++ b/docs/backend-typescript-migration-plan.md
@@ -349,6 +349,14 @@
     - `npm run typecheck`
     - `npm run build`
     - `npm test` 共 136 个用例通过
+57. Agiso 订单详情服务迁移到 `.ts`：
+    - `src/services/platforms/agiso/xianyu/order-detail-service.ts`
+58. 订单详情补查入参、依赖注入、HTTP 响应、详情查询结果、发货状态、店铺配置、外部 SKU 解析结果已显式类型化
+59. Docker 内验证通过：
+    - `src/services/platforms/agiso/xianyu/order-detail-service.test.js` 共 5 个用例通过
+    - `npm run typecheck`
+    - `npm run build`
+    - `npm test` 共 136 个用例通过
 
 ## 下一步建议