diff --git a/src/controller/userController.ts b/src/controller/userController.ts
index b3e0c99..1f3bf1f 100644
--- a/src/controller/userController.ts
+++ b/src/controller/userController.ts
@@ -119,4 +119,13 @@ export class UserController extends BaseController {
       { orderId: tickets[0].orderId, refundTicketsCount: tickets.length },
     );
   };
+
+  public useTicket: TMethod = async (req) => {
+    const jwtString = await this.userService.useTicket(req.params.ticketId);
+    return this.formatResponse(
+      CustomResponseType.OK_MESSAGE,
+      CustomResponseType.OK,
+      { qrCode: jwtString },
+    );
+  };
 }
diff --git a/src/routes/userRoute.ts b/src/routes/userRoute.ts
index 1914840..9373bf4 100644
--- a/src/routes/userRoute.ts
+++ b/src/routes/userRoute.ts
@@ -4,6 +4,7 @@ import { UserVerify } from '../middleware/userVerify';
 import { GetUserFavoritePipe } from '../validator/user/getUserFavorite.pipe';
 import { GetUserGroupPipe } from '../validator/group/getUserGroup.pipe';
 import { TicketRefundPipe } from '../validator/ticket/ticketRefund.pipe';
+import { UseTicketPipe } from '../validator/ticket/useTicket.pipe';
 
 export class UserRoute extends BaseRoute {
   protected controller!: UserController;
@@ -278,25 +279,16 @@ export class UserRoute extends BaseRoute {
     this.router.patch(
       '/v1/user/refund',
       /**
-       * #swagger.tags = ['Ticket']
+       * #swagger.tags = ['User']
        * #swagger.summary = '退票'
        * #swagger.security=[{"Bearer": []}]
        */
       /*
         #swagger.parameters['obj'] ={
           in:'body',
-          description:'欲退票的票券ID',
-          schema:{
-            $ref:"#/definitions/CustomGetTicketIdQuery"
-          }
-        }
-       */
-      /*
-        #swagger.parameters['obj'] ={
-          in:'body',
-          description:'退票原因',
+          description:'欲退票的票券資料',
           schema:{
-            $ref:"#/definitions/CustomRefundTicketsReason"
+            $ref:"#/definitions/CustomTicketRefundObj"
           }
         }
        */
@@ -312,5 +304,33 @@ export class UserRoute extends BaseRoute {
       this.usePipe(TicketRefundPipe),
       this.responseHandler(this.controller.ticketRefund),
     );
+
+    this.router.post(
+      '/v1/user/use-ticket/:ticketId',
+      /**
+       * #swagger.tags = ['User']
+       * #swagger.summary = '產生換票QR Code'
+       * #swagger.security=[{"Bearer": []}]
+       */
+      /*
+        #swagger.parameters['ticketId'] ={
+          in:'path',
+          description:'欲兌換的票券ID',
+          required: true,
+          type: 'string',
+        }
+       */
+      /**
+       #swagger.responses[200]={
+       description:'QR Code產生成功',
+       schema:{
+       $ref:'#/definitions/GetQRCodeSuccess'
+       }
+       }
+       */
+      UserVerify,
+      this.usePipe(UseTicketPipe),
+      this.responseHandler(this.controller.useTicket),
+    );
   }
 }
diff --git a/src/service/userService.ts b/src/service/userService.ts
index 25456eb..df1a761 100644
--- a/src/service/userService.ts
+++ b/src/service/userService.ts
@@ -108,17 +108,6 @@ export class UserService {
     return user;
   }
 
-  public async findByEmail(email: string) {
-    const user = await this.userRepository.findByEmail(email);
-    if (!user) {
-      throwError(
-        CustomResponseType.UNREGISTERED_USER_MESSAGE,
-        CustomResponseType.UNREGISTERED_USER,
-      );
-    }
-    return user;
-  }
-
   public async getUserGroups(getUserGroupDto: GetUserGroupDto) {
     switch (getUserGroupDto.groupType) {
       case 'own': {
@@ -416,4 +405,25 @@ export class UserService {
     });
     return result;
   }
+
+  public useTicket = async (ticketId: string) => {
+    const ticket = await this.ticketRepository.findById(
+      new Types.ObjectId(ticketId),
+    );
+    if (!ticket) {
+      throwError(
+        CustomResponseType.TICKET_NOT_FOUND_MESSAGE,
+        CustomResponseType.TICKET_NOT_FOUND,
+      );
+    }
+    const privateKey = process.env.JWT_SECRETS;
+    const defaultOptions: object = {
+      expiresIn: '5m',
+    };
+    return jwt.sign(
+      { ticketId: ticketId },
+      privateKey,
+      Object.assign(defaultOptions),
+    );
+  };
 }
diff --git a/src/swagger/definition/ticket/custom.ts b/src/swagger/definition/ticket/custom.ts
index 62e3861..9607016 100644
--- a/src/swagger/definition/ticket/custom.ts
+++ b/src/swagger/definition/ticket/custom.ts
@@ -146,3 +146,19 @@ export const CustomDeleteTicketsObj = {
     },
   },
 };
+export const CustomTicketRefundObj = {
+  type: 'object',
+  required: ['ticketId', 'reason'],
+  properties: {
+    ticketId: {
+      type: 'string',
+      description: propName.ticketId,
+      example: ticket.ticketId,
+    },
+    reason: {
+      type: 'string',
+      description: '退票原因',
+      example: '臨時有事',
+    },
+  },
+};
diff --git a/src/swagger/definition/ticket/general.ts b/src/swagger/definition/ticket/general.ts
index 86f1a0b..f63f605 100644
--- a/src/swagger/definition/ticket/general.ts
+++ b/src/swagger/definition/ticket/general.ts
@@ -14,6 +14,10 @@ const TicketProductDetail = {
   photoPath: '',
 };
 
+const QRCodeResponse = {
+  qrCode: 'uwiehdfipu28349y5rp24gh9',
+};
+
 /**
  * @description swagger autogen 可以自動生成，通常用於 response 的 general 資料
  */
@@ -130,3 +134,9 @@ export const GetTransferTicketSuccess = {
   $message: CustomResponseType.OK_MESSAGE,
   $data: [TransferableTicket],
 };
+
+export const GetQRCodeSuccess = {
+  $status: CustomResponseType.OK,
+  $message: CustomResponseType.OK_MESSAGE,
+  $data: QRCodeResponse,
+};
diff --git a/src/validator/ticket/useTicket.pipe.ts b/src/validator/ticket/useTicket.pipe.ts
new file mode 100644
index 0000000..29f37cb
--- /dev/null
+++ b/src/validator/ticket/useTicket.pipe.ts
@@ -0,0 +1,17 @@
+import { param } from 'express-validator';
+import { PipeBase } from '../pipe.base';
+import { CustomResponseType } from '../../types/customResponseType';
+
+export class UseTicketPipe extends PipeBase {
+  public transform = () => [
+    param('ticketId')
+      .exists()
+      .withMessage(
+        CustomResponseType.INVALID_TICKET_REFUND_MESSAGE + 'ticketId',
+      ),
+    this.validationHandler,
+  ];
+  constructor() {
+    super();
+  }
+}