diff --git a/backend/services/wallet-service/src/api/controllers/fiat-withdrawal.controller.ts b/backend/services/wallet-service/src/api/controllers/fiat-withdrawal.controller.ts
index 85e9e4d2..0d639f4c 100644
--- a/backend/services/wallet-service/src/api/controllers/fiat-withdrawal.controller.ts
+++ b/backend/services/wallet-service/src/api/controllers/fiat-withdrawal.controller.ts
@@ -103,7 +103,7 @@ export class FiatWithdrawalController {
   async getFiatWithdrawals(
     @CurrentUser() user: CurrentUserPayload,
   ): Promise<FiatWithdrawalListItemDTO[]> {
-    return this.fiatWithdrawalService.getFiatWithdrawals(user.userId);
+    return this.fiatWithdrawalService.getFiatWithdrawals(user.accountSequence);
   }
 
   /**
diff --git a/backend/services/wallet-service/src/api/controllers/wallet.controller.ts b/backend/services/wallet-service/src/api/controllers/wallet.controller.ts
index ff1616fa..93e75d79 100644
--- a/backend/services/wallet-service/src/api/controllers/wallet.controller.ts
+++ b/backend/services/wallet-service/src/api/controllers/wallet.controller.ts
@@ -132,7 +132,7 @@ export class WalletController {
   async getWithdrawals(
     @CurrentUser() user: CurrentUserPayload,
   ): Promise<WithdrawalListItemDTO[]> {
-    return this.walletService.getWithdrawals(user.userId);
+    return this.walletService.getWithdrawals(user.accountSequence);
   }
 
   @Get('pending-rewards')
diff --git a/backend/services/wallet-service/src/application/services/fiat-withdrawal-application.service.ts b/backend/services/wallet-service/src/application/services/fiat-withdrawal-application.service.ts
index 85ba2f45..0cc7d5a4 100644
--- a/backend/services/wallet-service/src/application/services/fiat-withdrawal-application.service.ts
+++ b/backend/services/wallet-service/src/application/services/fiat-withdrawal-application.service.ts
@@ -325,8 +325,9 @@ export class FiatWithdrawalApplicationService {
   /**
    * 获取用户的法币提现订单列表
    */
-  async getFiatWithdrawals(userId: string): Promise<FiatWithdrawalListItemDTO[]> {
-    const orders = await this.fiatWithdrawalRepo.findByUserId(BigInt(userId));
+  async getFiatWithdrawals(accountSequence: string): Promise<FiatWithdrawalListItemDTO[]> {
+    // 使用 accountSequence 查询法币提现订单（废弃 userId 查询）
+    const orders = await this.fiatWithdrawalRepo.findByAccountSequence(accountSequence);
     return orders.map(order => this.toListItemDTO(order));
   }
 
diff --git a/backend/services/wallet-service/src/application/services/wallet-application.service.ts b/backend/services/wallet-service/src/application/services/wallet-application.service.ts
index 058da79f..4b542029 100644
--- a/backend/services/wallet-service/src/application/services/wallet-application.service.ts
+++ b/backend/services/wallet-service/src/application/services/wallet-application.service.ts
@@ -1754,7 +1754,7 @@ export class WalletApplicationService {
   /**
    * 查询用户提现订单
    */
-  async getWithdrawals(userId: string): Promise<Array<{
+  async getWithdrawals(accountSequence: string): Promise<Array<{
     orderNo: string;
     amount: number;
     fee: number;
@@ -1765,7 +1765,8 @@ export class WalletApplicationService {
     status: string;
     createdAt: string;
   }>> {
-    const orders = await this.withdrawalRepo.findByUserId(BigInt(userId));
+    // 使用 accountSequence 查询提现订单（废弃 userId 查询）
+    const orders = await this.withdrawalRepo.findByAccountSequence(accountSequence);
     return orders.map(order => ({
       orderNo: order.orderNo,
       amount: order.amount.value,
diff --git a/backend/services/wallet-service/src/domain/repositories/withdrawal-order.repository.interface.ts b/backend/services/wallet-service/src/domain/repositories/withdrawal-order.repository.interface.ts
index fb2fe053..3839a3f7 100644
--- a/backend/services/wallet-service/src/domain/repositories/withdrawal-order.repository.interface.ts
+++ b/backend/services/wallet-service/src/domain/repositories/withdrawal-order.repository.interface.ts
@@ -7,6 +7,7 @@ export interface IWithdrawalOrderRepository {
   findById(orderId: bigint): Promise<WithdrawalOrder | null>;
   findByOrderNo(orderNo: string): Promise<WithdrawalOrder | null>;
   findByUserId(userId: bigint, status?: WithdrawalStatus): Promise<WithdrawalOrder[]>;
+  findByAccountSequence(accountSequence: string, status?: WithdrawalStatus): Promise<WithdrawalOrder[]>;
   findPendingOrders(): Promise<WithdrawalOrder[]>;
   findFrozenOrders(): Promise<WithdrawalOrder[]>;
   findBroadcastedOrders(): Promise<WithdrawalOrder[]>;
diff --git a/backend/services/wallet-service/src/infrastructure/persistence/repositories/withdrawal-order.repository.impl.ts b/backend/services/wallet-service/src/infrastructure/persistence/repositories/withdrawal-order.repository.impl.ts
index b29e5245..42631015 100644
--- a/backend/services/wallet-service/src/infrastructure/persistence/repositories/withdrawal-order.repository.impl.ts
+++ b/backend/services/wallet-service/src/infrastructure/persistence/repositories/withdrawal-order.repository.impl.ts
@@ -74,6 +74,19 @@ export class WithdrawalOrderRepositoryImpl implements IWithdrawalOrderRepository
     return records.map(r => this.toDomain(r));
   }
 
+  async findByAccountSequence(accountSequence: string, status?: WithdrawalStatus): Promise<WithdrawalOrder[]> {
+    const where: Record<string, unknown> = { accountSequence };
+    if (status) {
+      where.status = status;
+    }
+
+    const records = await this.prisma.withdrawalOrder.findMany({
+      where,
+      orderBy: { createdAt: 'desc' },
+    });
+    return records.map(r => this.toDomain(r));
+  }
+
   async findPendingOrders(): Promise<WithdrawalOrder[]> {
     const records = await this.prisma.withdrawalOrder.findMany({
       where: { status: WithdrawalStatus.PENDING },