diff --git a/leopard-core/src/main/java/com/lanyuanxiaoyao/leopard/core/entity/TaskTemplate.java b/leopard-core/src/main/java/com/lanyuanxiaoyao/leopard/core/entity/TaskTemplate.java
index 1c60fa5..5a40d70 100644
--- a/leopard-core/src/main/java/com/lanyuanxiaoyao/leopard/core/entity/TaskTemplate.java
+++ b/leopard-core/src/main/java/com/lanyuanxiaoyao/leopard/core/entity/TaskTemplate.java
@@ -34,4 +34,6 @@ public class TaskTemplate extends SimpleEntity {
   private String chain;
   @Column(nullable = false)
   private String expression;
+  @Column(nullable = false)
+  private String expressionEl;
 }
\ No newline at end of file
diff --git a/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/controller/TaskTemplateController.java b/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/controller/TaskTemplateController.java
index 850bbd1..a14bcf2 100644
--- a/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/controller/TaskTemplateController.java
+++ b/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/controller/TaskTemplateController.java
@@ -31,7 +31,8 @@ public class TaskTemplateController extends SimpleControllerSupport<TaskTemplate
       template.setDescription(item.description());
       template.setApplication(application);
       template.setChain(IdUtil.simpleUUID());
-      template.setExpression(StrUtil.format("CATCH(THEN(task_start, ({}), task_end)).DO(task_error)", item.expression()));
+      template.setExpression(item.expression());
+      template.setExpressionEl(StrUtil.format("CATCH(THEN(task_start, ({}), task_end)).DO(task_error)", item.expression()));
       return template;
     };
   }
diff --git a/leopard-server/src/main/resources/application.yml b/leopard-server/src/main/resources/application.yml
index 42e0b73..d2b3611 100644
--- a/leopard-server/src/main/resources/application.yml
+++ b/leopard-server/src/main/resources/application.yml
@@ -44,4 +44,4 @@ liteflow:
     chainTableName: leopard_task_template
     chainApplicationNameField: application
     chainNameField: chain
-    elDataField: expression
+    elDataField: expression_el