diff --git a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainXMLELSpringbootTest.java b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainXMLELSpringbootTest.java
index 9799ea12f..099436baf 100644
--- a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainXMLELSpringbootTest.java
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainXMLELSpringbootTest.java
@@ -26,11 +26,30 @@ public class AbstractChainXMLELSpringbootTest extends BaseTest {
 	@Resource
 	private FlowExecutor flowExecutor;
 
-	// XML文件单继承测试
+
+
+	// XML文件基本继承测试
 	@Test
 	public void test1() throws Exception {
 		LiteflowResponse response = flowExecutor.execute2Resp("implA", "arg");
 		Assertions.assertTrue(response.isSuccess());
 		Assertions.assertEquals("a==>b==>c==>d==>f==>j", response.getExecuteStepStrWithoutTime());
 	}
+
+	//测试嵌套继承的baseChain是否重复解析
+	@Test
+	public void test2() throws Exception {
+		LiteflowResponse response = flowExecutor.execute2Resp("implB", "arg");
+		Assertions.assertTrue(response.isSuccess());
+		Assertions.assertEquals("a==>b==>a==>b==>a==>b==>f==>j", response.getExecuteStepStrWithoutTime());
+	}
+
+	//测试嵌套继承的baseChain是否重复解析
+	@Test
+	public void test3() throws Exception {
+		LiteflowResponse response = flowExecutor.execute2Resp("implC", "arg");
+		Assertions.assertTrue(response.isSuccess());
+		Assertions.assertEquals("a==>b==>a==>b==>a==>b==>f==>a==>b", response.getExecuteStepStrWithoutTime());
+	}
+
 }
diff --git a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/flow.el.xml b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/flow.el.xml
index f647ed40e..2cfe33ef4 100644
--- a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/flow.el.xml
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/flow.el.xml
@@ -1,5 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <flow>
+    <chain id="implB" extends="base2">
+        {3}=THEN(a,b);
+        {4}=j;
+    </chain>
+
+    <chain id="implC" extends="base2">
+        {3}=THEN(a,b);
+        {4}=THEN(a,b).id("j");
+    </chain>
+
     <chain abstract="true" id="base">
         THEN(a, b, {0}, {1})
     </chain>
@@ -8,4 +18,11 @@
         {0}=IF(c, d, e);
         {1}=SWITCH(f).to(j,k);
     </chain>
+
+    <chain abstract="true" id="base2" extends="base">
+        {0}=THEN(a,b,{3});
+        {1}=SWITCH(f).to({4},k);
+    </chain>
+
+
 </flow>
\ No newline at end of file