diff --git a/apps/backend/src/services/worker-platform/index.ts b/apps/backend/src/services/worker-platform/index.ts
index fdb4ce43..d170a019 100644
--- a/apps/backend/src/services/worker-platform/index.ts
+++ b/apps/backend/src/services/worker-platform/index.ts
@@ -6,6 +6,7 @@ export * from './worker-session-view.js'
 export * from './worker-session-auth-service.js'
 export * from './worker-credentials-service.js'
 export * from './worker-sms-service.js'
+export * from './worker-registration-service.js'
 export * from './worker-platform-defaults.js'
 export * from './work-order-timeout-policy.js'
 export * from './after-sales-service.js'
diff --git a/apps/backend/src/services/worker-platform/worker-registration-service.ts b/apps/backend/src/services/worker-platform/worker-registration-service.ts
new file mode 100644
index 00000000..3d67a27a
--- /dev/null
+++ b/apps/backend/src/services/worker-platform/worker-registration-service.ts
@@ -0,0 +1,208 @@
+import crypto from 'node:crypto'
+
+import {
+  consumeWorkerSmsCode,
+  createWorkerUser,
+  getLatestWorkerSmsCode,
+  getWorkerUserByDisplayName,
+  getWorkerUserByInviteCode,
+  getWorkerUserByPhone,
+  getWorkerUserByUsername,
+  recordWorkerSmsCodeFailure,
+  revokeAllWorkerSessions,
+  updateWorkerPassword,
+} from '../../repositories/worker-platform/index.js'
+import type { JsonObject } from '../../types/json.js'
+import { createHttpError } from '../../utils/http.js'
+import { nowIso } from '../../utils/time.js'
+import {
+  ensureWorkerAuthConfigured,
+  hashWorkerPassword,
+  mapWorkerUser,
+  normalizePassword,
+  normalizeSessionVersion,
+  validateWorkerPassword,
+} from './mappers.js'
+import { ensureWorkerPlatformDefaults } from './worker-platform-defaults.js'
+import { hashSmsCode, normalizeWorkerPhone } from './worker-sms-service.js'
+
+const INVITE_CODE_LENGTH = 8
+const INVITE_CODE_RETRY_LIMIT = 5
+const WORKER_SMS_MAX_VERIFY_ATTEMPTS = 5
+
+export async function resetWorkerPassword(payload: JsonObject = {}) {
+  const phone = normalizeWorkerPhone(payload.phone)
+  const code = String(payload.code || payload.smsCode || '').trim()
+  const password = normalizePassword(payload.password || payload.newPassword)
+  validateWorkerPassword(password)
+  if (!code) {
+    throw createHttpError('请输入短信验证码', {
+      statusCode: 400,
+      errorCode: 'worker_sms_code_required',
+    })
+  }
+
+  const worker = await getWorkerUserByPhone(phone)
+  if (!worker) {
+    throw createHttpError('该手机号未注册', {
+      statusCode: 404,
+      errorCode: 'worker_phone_not_registered',
+    })
+  }
+  const latest = await getLatestWorkerSmsCode(phone, 'password_reset')
+  const codeValid = isWorkerSmsCodeValid(latest, code)
+  if (!codeValid) {
+    await recordInvalidWorkerSmsCode(latest)
+    throw createHttpError('短信验证码错误或已过期', {
+      statusCode: 400,
+      errorCode: 'worker_sms_code_invalid',
+    })
+  }
+  if (!(await consumeWorkerSmsCode(latest!.id, nowIso()))) {
+    throw createHttpError('验证码已失效，请重新获取', {
+      statusCode: 400,
+      errorCode: 'worker_sms_code_invalid',
+    })
+  }
+  const now = nowIso()
+  const updated = await updateWorkerPassword({
+    workerId: worker.id,
+    passwordHash: hashWorkerPassword(password),
+    sessionVersion: normalizeSessionVersion(worker.session_version) + 1,
+    now,
+  })
+  await revokeAllWorkerSessions(worker.id, now)
+  return { worker: mapWorkerUser(updated || worker), reloginRequired: true }
+}
+
+export async function registerWorker(payload: JsonObject = {}) {
+  ensureWorkerAuthConfigured()
+  const phone = normalizeWorkerPhone(payload.phone)
+  const code = String(payload.code || payload.smsCode || '').trim()
+  const password = normalizePassword(payload.password)
+  const displayName = String(payload.displayName || payload.nickname || '').trim()
+  const inviteCode = String(payload.inviteCode || '')
+    .trim()
+    .toUpperCase()
+
+  validateWorkerPassword(password)
+  if (!displayName) {
+    throw createHttpError('请输入昵称', {
+      statusCode: 400,
+      errorCode: 'worker_display_name_required',
+    })
+  }
+  if (!code) {
+    throw createHttpError('请输入短信验证码', {
+      statusCode: 400,
+      errorCode: 'worker_sms_code_required',
+    })
+  }
+
+  const latest = await getLatestWorkerSmsCode(phone, 'register')
+  if (!isWorkerSmsCodeValid(latest, code)) {
+    await recordInvalidWorkerSmsCode(latest)
+    throw createHttpError('短信验证码错误或已过期', {
+      statusCode: 400,
+      errorCode: 'worker_sms_code_invalid',
+    })
+  }
+  if (await getWorkerUserByUsername(phone)) {
+    throw createHttpError('该手机号已注册，请直接登录', {
+      statusCode: 409,
+      errorCode: 'worker_user_exists',
+    })
+  }
+  if (await getWorkerUserByPhone(phone)) {
+    throw createHttpError('该手机号已注册，请直接登录', {
+      statusCode: 409,
+      errorCode: 'worker_phone_exists',
+    })
+  }
+
+  const inviter = inviteCode ? await getWorkerUserByInviteCode(inviteCode) : null
+  if (inviteCode && !inviter) {
+    throw createHttpError('邀请码无效', {
+      statusCode: 400,
+      errorCode: 'worker_invite_code_invalid',
+    })
+  }
+  if (inviter && inviter.status !== 'active') {
+    throw createHttpError('邀请人账号不可用', {
+      statusCode: 400,
+      errorCode: 'worker_inviter_invalid',
+    })
+  }
+  if (await getWorkerUserByDisplayName(displayName)) {
+    throw createHttpError('该昵称已被使用，请更换昵称', {
+      statusCode: 409,
+      errorCode: 'worker_display_name_taken',
+    })
+  }
+
+  const defaults = await ensureWorkerPlatformDefaults()
+  const now = nowIso()
+  const created = await createWorkerUser({
+    username: phone,
+    passwordHash: hashWorkerPassword(password),
+    displayName,
+    phone,
+    levelId: defaults.level?.id || null,
+    status: 'active',
+    inviterId: inviter ? Number(inviter.id) : null,
+    inviteCode: await generateInviteCode(),
+    smsCodeId: latest!.id,
+    now,
+  })
+  if (!created) {
+    throw createHttpError('接单账号注册失败', {
+      statusCode: 500,
+      errorCode: 'worker_register_failed',
+    })
+  }
+  return { worker: mapWorkerUser(created), reviewRequired: false }
+}
+
+function isWorkerSmsCodeValid(
+  latest: { consumed_at: string | null; expires_at: string; code_hash: string } | null,
+  code: string,
+) {
+  return Boolean(
+    latest &&
+    !latest.consumed_at &&
+    new Date(latest.expires_at).getTime() > Date.now() &&
+    latest.code_hash === hashSmsCode(code),
+  )
+}
+
+async function recordInvalidWorkerSmsCode(
+  latest: { id: number; consumed_at: string | null } | null,
+) {
+  if (!latest || latest.consumed_at) return
+  const failed = await recordWorkerSmsCodeFailure(
+    latest.id,
+    nowIso(),
+    WORKER_SMS_MAX_VERIFY_ATTEMPTS,
+  )
+  if (failed?.consumed_at) {
+    throw createHttpError('验证码错误次数过多，请重新获取验证码', {
+      statusCode: 400,
+      errorCode: 'worker_sms_code_locked',
+    })
+  }
+}
+
+async function generateInviteCode(): Promise<string> {
+  const chars = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789'
+  for (let attempt = 0; attempt < INVITE_CODE_RETRY_LIMIT; attempt += 1) {
+    const candidate = Array.from(
+      { length: INVITE_CODE_LENGTH },
+      () => chars[Math.floor(crypto.randomInt(chars.length))],
+    ).join('')
+    if (!(await getWorkerUserByInviteCode(candidate))) return candidate
+  }
+  throw createHttpError('邀请码生成失败，请重试', {
+    statusCode: 500,
+    errorCode: 'worker_invite_code_generation_failed',
+  })
+}
diff --git a/apps/backend/src/services/worker-platform/worker-service.ts b/apps/backend/src/services/worker-platform/worker-service.ts
index 011e3caa..11f421f4 100644
--- a/apps/backend/src/services/worker-platform/worker-service.ts
+++ b/apps/backend/src/services/worker-platform/worker-service.ts
@@ -1,5 +1,3 @@
-import crypto from 'node:crypto'
-
 import { runtimeConfig } from '../../config/runtime.js'
 import { WORK_ORDER_STATUS } from '../../domain/work-order-status.js'
 import {
@@ -15,12 +13,10 @@ import {
   consumeWorkerSmsCode,
   createWorkOrderEvent,
   createWorkerFinanceRequest,
-  createWorkerUser,
   createWorkerWithdrawalAccount as createWorkerWithdrawalAccountRecord,
   getWorkerFinanceRequestSummary,
   getLatestWorkerSmsCode,
   recordWorkerSmsCodeFailure,
-  getWorkerUserByInviteCode,
   getWorkerUserById,
   getWorkerWithdrawalAccount,
   getWorkerUserByPhone,
@@ -34,7 +30,6 @@ import {
   getWorkerSessionBySessionId,
   listWorkerSessions,
   revokeWorkerSession,
-  revokeAllWorkerSessions,
   touchWorkerSession,
   joinWorkOrderShare,
   listPendingMaterialWorkOrdersByPlatformOrderId,
@@ -67,7 +62,6 @@ import {
   updateWorkOrderShareDraftAcceptance,
   upsertWorkerWorkOrderNote,
   markWorkerWorkOrderViewed,
-  updateWorkerPassword,
   type WorkOrderRow,
   type WorkOrderShareRow,
   type WorkerSessionRow,
@@ -103,8 +97,6 @@ import {
 } from '../realtime/realtime-event-service.js'
 
 import {
-  INVITE_CODE_LENGTH,
-  INVITE_CODE_RETRY_LIMIT,
   createWorkerSession,
   ensureWorkerAuthConfigured,
   hashWorkerPassword,
@@ -153,6 +145,7 @@ import {
   normalizeWorkerDeviceType,
 } from './worker-auth-policy.js'
 import { ensureWorkerPlatformDefaults } from './worker-platform-defaults.js'
+import { registerWorker, resetWorkerPassword } from './worker-registration-service.js'
 import {
   hashSmsCode,
   normalizeWorkerPhone,
@@ -189,6 +182,7 @@ export {
 } from './work-order-timeout-policy.js'
 export type { WorkOrderTimeoutPolicy } from './work-order-timeout-policy.js'
 export { changeWorkerPassword } from './worker-credentials-service.js'
+export { registerWorker, resetWorkerPassword } from './worker-registration-service.js'
 export {
   sendWorkerLoginSmsCode,
   sendWorkerPasswordResetSmsCode,
@@ -204,200 +198,6 @@ export {
 
 const WORKER_MAX_DEVICES = 3
 
-export async function resetWorkerPassword(payload: JsonObject = {}) {
-  const phone = normalizeWorkerPhone(payload.phone)
-  const code = String(payload.code || payload.smsCode || '').trim()
-  const password = normalizePassword(payload.password || payload.newPassword)
-  validateWorkerPassword(password)
-  if (!code) {
-    throw createHttpError('请输入短信验证码', {
-      statusCode: 400,
-      errorCode: 'worker_sms_code_required',
-    })
-  }
-
-  const worker = await getWorkerUserByPhone(phone)
-  if (!worker) {
-    throw createHttpError('该手机号未注册', {
-      statusCode: 404,
-      errorCode: 'worker_phone_not_registered',
-    })
-  }
-  const latest = await getLatestWorkerSmsCode(phone, 'password_reset')
-  const codeValid = Boolean(
-    latest &&
-    !latest.consumed_at &&
-    new Date(latest.expires_at).getTime() > Date.now() &&
-    latest.code_hash === hashSmsCode(code),
-  )
-  if (!codeValid) {
-    if (latest && !latest.consumed_at) {
-      const failed = await recordWorkerSmsCodeFailure(
-        latest.id,
-        nowIso(),
-        WORKER_SMS_MAX_VERIFY_ATTEMPTS,
-      )
-      if (failed?.consumed_at) {
-        throw createHttpError('验证码错误次数过多，请重新获取验证码', {
-          statusCode: 400,
-          errorCode: 'worker_sms_code_locked',
-        })
-      }
-    }
-    throw createHttpError('短信验证码错误或已过期', {
-      statusCode: 400,
-      errorCode: 'worker_sms_code_invalid',
-    })
-  }
-  const consumed = await consumeWorkerSmsCode(latest!.id, nowIso())
-  if (!consumed) {
-    throw createHttpError('验证码已失效，请重新获取', {
-      statusCode: 400,
-      errorCode: 'worker_sms_code_invalid',
-    })
-  }
-  const now = nowIso()
-  const updated = await updateWorkerPassword({
-    workerId: worker.id,
-    passwordHash: hashWorkerPassword(password),
-    sessionVersion: normalizeSessionVersion(worker.session_version) + 1,
-    now,
-  })
-  await revokeAllWorkerSessions(worker.id, now)
-  return { worker: mapWorkerUser(updated || worker), reloginRequired: true }
-}
-
-export async function registerWorker(payload: JsonObject = {}) {
-  ensureWorkerAuthConfigured()
-  const phone = normalizeWorkerPhone(payload.phone)
-  const code = String(payload.code || payload.smsCode || '').trim()
-  const password = normalizePassword(payload.password)
-  const displayName = String(payload.displayName || payload.nickname || '').trim()
-  const inviteCode = String(payload.inviteCode || '')
-    .trim()
-    .toUpperCase()
-
-  validateWorkerPassword(password)
-  if (!displayName) {
-    throw createHttpError('请输入昵称', {
-      statusCode: 400,
-      errorCode: 'worker_display_name_required',
-    })
-  }
-  if (!code) {
-    throw createHttpError('请输入短信验证码', {
-      statusCode: 400,
-      errorCode: 'worker_sms_code_required',
-    })
-  }
-
-  const latest = await getLatestWorkerSmsCode(phone, 'register')
-  const codeValid = Boolean(
-    latest &&
-    !latest.consumed_at &&
-    new Date(latest.expires_at).getTime() > Date.now() &&
-    latest.code_hash === hashSmsCode(code),
-  )
-  if (!codeValid) {
-    if (latest && !latest.consumed_at) {
-      const failed = await recordWorkerSmsCodeFailure(
-        latest.id,
-        nowIso(),
-        WORKER_SMS_MAX_VERIFY_ATTEMPTS,
-      )
-      if (failed && failed.consumed_at) {
-        throw createHttpError('验证码错误次数过多，请重新获取验证码', {
-          statusCode: 400,
-          errorCode: 'worker_sms_code_locked',
-        })
-      }
-    }
-    throw createHttpError('短信验证码错误或已过期', {
-      statusCode: 400,
-      errorCode: 'worker_sms_code_invalid',
-    })
-  }
-  if (await getWorkerUserByUsername(phone)) {
-    throw createHttpError('该手机号已注册，请直接登录', {
-      statusCode: 409,
-      errorCode: 'worker_user_exists',
-    })
-  }
-  if (await getWorkerUserByPhone(phone)) {
-    throw createHttpError('该手机号已注册，请直接登录', {
-      statusCode: 409,
-      errorCode: 'worker_phone_exists',
-    })
-  }
-
-  const inviter = inviteCode ? await getWorkerUserByInviteCode(inviteCode) : null
-  if (inviteCode && !inviter) {
-    throw createHttpError('邀请码无效', {
-      statusCode: 400,
-      errorCode: 'worker_invite_code_invalid',
-    })
-  }
-  if (inviter && inviter.status !== 'active') {
-    throw createHttpError('邀请人账号不可用', {
-      statusCode: 400,
-      errorCode: 'worker_inviter_invalid',
-    })
-  }
-
-  if (await getWorkerUserByDisplayName(displayName)) {
-    throw createHttpError('该昵称已被使用，请更换昵称', {
-      statusCode: 409,
-      errorCode: 'worker_display_name_taken',
-    })
-  }
-
-  const defaults = await ensureWorkerPlatformDefaults()
-  const now = nowIso()
-  const created = await createWorkerUser({
-    username: phone,
-    passwordHash: hashWorkerPassword(password),
-    displayName,
-    phone,
-    levelId: defaults.level?.id || null,
-    // 手机号验证码已完成注册身份校验，账号直接启用，无需人工审核。
-    status: 'active',
-    inviterId: inviter ? Number(inviter.id) : null,
-    inviteCode: await generateInviteCode(now),
-    smsCodeId: latest!.id,
-    now,
-  })
-
-  if (!created) {
-    throw createHttpError('接单账号注册失败', {
-      statusCode: 500,
-      errorCode: 'worker_register_failed',
-    })
-  }
-
-  return {
-    worker: mapWorkerUser(created),
-    // 保留字段兼容旧版客户端，但注册流程不再需要后台审核。
-    reviewRequired: false,
-  }
-}
-
-async function generateInviteCode(_now: string): Promise<string> {
-  const chars = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789'
-  for (let attempt = 0; attempt < INVITE_CODE_RETRY_LIMIT; attempt++) {
-    const candidate = Array.from(
-      { length: INVITE_CODE_LENGTH },
-      () => chars[Math.floor(crypto.randomInt(chars.length))],
-    ).join('')
-    if (!(await getWorkerUserByInviteCode(candidate))) {
-      return candidate
-    }
-  }
-  throw createHttpError('邀请码生成失败，请重试', {
-    statusCode: 500,
-    errorCode: 'worker_invite_code_generation_failed',
-  })
-}
-
 export async function loginWorker(
   username: unknown,
   password: unknown,