diff --git a/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/MapHandler.java b/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/MapHandler.java
index 6e0732e8a..d26fefef3 100644
--- a/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/MapHandler.java
+++ b/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/MapHandler.java
@@ -15,7 +15,7 @@ public interface MapHandler<T> {
      * 执行MAP操作
      *
      * @param taskList 需要分片的集合(建议不超过200个, 超过500禁止分片.)
-     * @param nextTaskName 下一次需要处理MAP的节点名称 (不能是MAP_ROOT)
+     * @param nextTaskName 下一次需要处理MAP的节点名称 (不能是ROOT_MAP)
      * @return ExecuteResult
      */
     ExecuteResult doMap(List<T> taskList, String nextTaskName);
diff --git a/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/annotation/MapExecutor.java b/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/annotation/MapExecutor.java
index 544eb3aaa..015f7bad4 100644
--- a/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/annotation/MapExecutor.java
+++ b/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/annotation/MapExecutor.java
@@ -25,6 +25,6 @@ public @interface MapExecutor {
      *
      * @return
      */
-    String taskName() default SystemConstants.MAP_ROOT;
+    String taskName() default SystemConstants.ROOT_MAP;
 
 }
diff --git a/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/executor/MapInvokeHandler.java b/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/executor/MapInvokeHandler.java
index e6644d284..1db0c6c12 100644
--- a/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/executor/MapInvokeHandler.java
+++ b/snail-job-client/snail-job-client-job-core/src/main/java/com/aizuda/snailjob/client/job/core/executor/MapInvokeHandler.java
@@ -60,8 +60,8 @@ public final class MapInvokeHandler implements InvocationHandler {
         }
 
         // taskName 任务命名和根任务名或者最终任务名称一致导致的问题（无限生成子任务或者直接失败）
-        if (SystemConstants.MAP_ROOT.equals(nextTaskName)) {
-            throw new SnailJobMapReduceException("The Next taskName can not be {}", SystemConstants.MAP_ROOT);
+        if (SystemConstants.ROOT_MAP.equals(nextTaskName)) {
+            throw new SnailJobMapReduceException("The Next taskName can not be {}", SystemConstants.ROOT_MAP);
         }
 
         // 使用ThreadLocal传递数据
diff --git a/snail-job-common/snail-job-common-core/src/main/java/com/aizuda/snailjob/common/core/constant/SystemConstants.java b/snail-job-common/snail-job-common-core/src/main/java/com/aizuda/snailjob/common/core/constant/SystemConstants.java
index e92c3a462..d0b6794df 100644
--- a/snail-job-common/snail-job-common-core/src/main/java/com/aizuda/snailjob/common/core/constant/SystemConstants.java
+++ b/snail-job-common/snail-job-common-core/src/main/java/com/aizuda/snailjob/common/core/constant/SystemConstants.java
@@ -212,5 +212,5 @@ public interface SystemConstants {
     /**
      * 动态分片的root节点
      */
-    String MAP_ROOT = "MAP_ROOT";
+    String ROOT_MAP = "ROOT_MAP";
 }
diff --git a/snail-job-server/snail-job-server-job-task/src/main/java/com/aizuda/snailjob/server/job/task/support/dispatch/JobExecutorActor.java b/snail-job-server/snail-job-server-job-task/src/main/java/com/aizuda/snailjob/server/job/task/support/dispatch/JobExecutorActor.java
index cac5f2c24..3aa424f23 100644
--- a/snail-job-server/snail-job-server-job-task/src/main/java/com/aizuda/snailjob/server/job/task/support/dispatch/JobExecutorActor.java
+++ b/snail-job-server/snail-job-server-job-task/src/main/java/com/aizuda/snailjob/server/job/task/support/dispatch/JobExecutorActor.java
@@ -139,7 +139,7 @@ public class JobExecutorActor extends AbstractActor {
             JobTaskGenerateContext instanceGenerateContext = JobTaskConverter.INSTANCE.toJobTaskInstanceGenerateContext(job);
             instanceGenerateContext.setTaskBatchId(taskExecute.getTaskBatchId());
             if (Lists.newArrayList(MAP_REDUCE.getType(), MAP.getType()).contains(job.getTaskType())) {
-                instanceGenerateContext.setTaskName(SystemConstants.MAP_ROOT);
+                instanceGenerateContext.setTaskName(SystemConstants.ROOT_MAP);
                 instanceGenerateContext.setMapSubTask(Lists.newArrayList(StrUtil.EMPTY));
                 instanceGenerateContext.setMrStage(MapReduceStageEnum.MAP.getStage());
             }