diff --git a/backend/src/main/java/com/qqchen/deploy/backend/deploy/lock/SyncLockType.java b/backend/src/main/java/com/qqchen/deploy/backend/deploy/lock/SyncLockType.java
new file mode 100644
index 00000000..6a0137ad
--- /dev/null
+++ b/backend/src/main/java/com/qqchen/deploy/backend/deploy/lock/SyncLockType.java
@@ -0,0 +1,44 @@
+package com.qqchen.deploy.backend.deploy.lock;
+
+/**
+ * 同步锁类型枚举
+ * <p>用于跨方法/跨服务协调同步任务，避免并发冲突</p>
+ * 
+ * <p>使用场景：当多个服务/方法需要操作同一资源时，使用相同的锁类型来保证串行执行</p>
+ * 
+ * <p>示例：Jenkins的View、Job、Build同步都会操作JenkinsJob表，
+ * 因此它们应该使用同一个锁类型 JENKINS_SYNC</p>
+ */
+public enum SyncLockType {
+    
+    /**
+     * Jenkins同步锁
+     * <p>用于：syncViews, syncJobs, syncBuilds</p>
+     * <p>锁粒度：externalSystemId</p>
+     */
+    JENKINS_SYNC("jenkins-sync"),
+    
+    /**
+     * GitLab/Git仓库同步锁
+     * <p>用于：syncGroups, syncProjects, syncBranches</p>
+     * <p>锁粒度：externalSystemId</p>
+     */
+    GITLAB_SYNC("gitlab-sync"),
+    
+    /**
+     * K8s同步锁
+     * <p>用于：syncNamespaces, syncDeployments</p>
+     * <p>锁粒度：externalSystemId</p>
+     */
+    K8S_SYNC("k8s-sync");
+    
+    private final String key;
+    
+    SyncLockType(String key) {
+        this.key = key;
+    }
+    
+    public String getKey() {
+        return key;
+    }
+}