diff --git a/nflg-qms-admin/src/main/java/com/nflg/qms/admin/service/QmsIssueTicketControllerService.java b/nflg-qms-admin/src/main/java/com/nflg/qms/admin/service/QmsIssueTicketControllerService.java
index 31e4bbe4..fc02b707 100644
--- a/nflg-qms-admin/src/main/java/com/nflg/qms/admin/service/QmsIssueTicketControllerService.java
+++ b/nflg-qms-admin/src/main/java/com/nflg/qms/admin/service/QmsIssueTicketControllerService.java
@@ -567,6 +567,15 @@ public class QmsIssueTicketControllerService {
         String userName = UserUtil.getUserName();
         LocalDateTime now = LocalDateTime.now();
 
+        // 校验 ticketTitle + projectNo 不能重复
+        boolean exists = issueTicketService.lambdaQuery()
+                .eq(QmsIssueTicket::getTicketTitle, request.getTicketTitle())
+                .eq(QmsIssueTicket::getProjectNo, request.getProjectNo())
+                .exists();
+        if (exists) {
+            throw new NflgException(STATE.BusinessError, "已存在相同标题和工程编号的工单，请勿重复创建");
+        }
+
         // 自动生成工单编号
         String ticketNo = basdeSerialNumberControllerService.generateSerialNumber(37);
 
@@ -610,6 +619,15 @@ public class QmsIssueTicketControllerService {
         String userName = UserUtil.getUserName();
         LocalDateTime now = LocalDateTime.now();
 
+        // 校验 ticketTitle + projectNo 不能重复
+        boolean exists = issueTicketService.lambdaQuery()
+                .eq(QmsIssueTicket::getTicketTitle, request.getTicketTitle())
+                .eq(QmsIssueTicket::getProjectNo, request.getProjectNo())
+                .exists();
+        if (exists) {
+            throw new NflgException(STATE.BusinessError, "已存在相同标题和工程编号的工单，请勿重复创建");
+        }
+
         // 1. 校验负责人存在
         User handlerUser = userService.getById(request.getHandlerUserId());
         VUtil.trueThrowBusinessError(Objects.isNull(handlerUser)).throwMessage("负责人不存在");