diff --git a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainJsonELSpringBootTest.java b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainJsonELSpringBootTest.java
index 47856b191..63d25911c 100644
--- a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainJsonELSpringBootTest.java
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainJsonELSpringBootTest.java
@@ -28,10 +28,26 @@ public class AbstractChainJsonELSpringBootTest extends BaseTest {
 
 	// 是否按照流程定义配置执行
 	@Test
-	public void testExplicitSubFlow() {
-		LiteflowResponse response = flowExecutor.execute2Resp("implA", "it's a request");
+	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/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
similarity index 93%
rename from liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainXMLELSpringbootTest.java
rename to liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainXmlELSpringbootTest.java
index 099436baf..efc11bec2 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
@@ -18,10 +18,10 @@ import javax.annotation.Resource;
  * @author Bryan.Zhang
  */
 @TestPropertySource(value = "classpath:/abstractChain/application.properties")
-@SpringBootTest(classes = AbstractChainXMLELSpringbootTest.class)
+@SpringBootTest(classes = AbstractChainXmlELSpringbootTest.class)
 @EnableAutoConfiguration
 @ComponentScan({ "com.yomahub.liteflow.test.abstractChain.cmp" })
-public class AbstractChainXMLELSpringbootTest extends BaseTest {
+public class AbstractChainXmlELSpringbootTest extends BaseTest {
 
 	@Resource
 	private FlowExecutor flowExecutor;
diff --git a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainYmlELSpringBootTest.java b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainYmlELSpringBootTest.java
new file mode 100644
index 000000000..b6fb89330
--- /dev/null
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/abstractChain/AbstractChainYmlELSpringBootTest.java
@@ -0,0 +1,54 @@
+package com.yomahub.liteflow.test.abstractChain;
+
+import com.yomahub.liteflow.core.FlowExecutor;
+import com.yomahub.liteflow.flow.LiteflowResponse;
+import com.yomahub.liteflow.test.BaseTest;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.test.context.TestPropertySource;
+
+import javax.annotation.Resource;
+
+/**
+ * 测试显示调用子流程(yml) 单元测试
+ *
+ * @author justin.xu
+ */
+@TestPropertySource(value = "classpath:/abstractChain/application-yml.properties")
+@SpringBootTest(classes = AbstractChainYmlELSpringBootTest.class)
+@EnableAutoConfiguration
+@ComponentScan({ "com.yomahub.liteflow.test.abstractChain.cmp" })
+public class AbstractChainYmlELSpringBootTest extends BaseTest {
+
+	@Resource
+	private FlowExecutor flowExecutor;
+
+	// 是否按照流程定义配置执行
+	// 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/application-yml.properties b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/application-yml.properties
new file mode 100644
index 000000000..e3b9c04c9
--- /dev/null
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/application-yml.properties
@@ -0,0 +1 @@
+liteflow.rule-source=abstractChain/flow.el.yml
\ No newline at end of file
diff --git a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/flow.el.json b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/flow.el.json
index 759672bb7..453bda2d9 100644
--- a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/flow.el.json
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/flow.el.json
@@ -2,14 +2,30 @@
   "flow": {
     "chain": [
       {
-        "name": "base",
+        "id": "implB",
+        "extends": "base2",
+        "value": "{3}=THEN(a,b);\n {4}=j;"
+      },
+      {
+        "id": "implC",
+        "extends": "base2",
+        "value": "{3}=THEN(a,b);\n {4}=THEN(a,b).id(\"j\");"
+      },
+      {
+        "id": "base",
         "abstract": true,
         "value": "THEN(a, b, {0}, {1});"
       },
       {
-        "name": "implA",
+        "id": "implA",
         "extends": "base",
         "value": "{0}=IF(c, d, e);\n  {1}=SWITCH(f).to(j,k);"
+      },
+      {
+        "id": "base2",
+        "extends": "base",
+        "abstract": true,
+        "value": "{0}=THEN(a,b,{3});\n {1}=SWITCH(f).to({4},k);"
       }
     ]
   }
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 2cfe33ef4..1994b64c5 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
@@ -10,7 +10,7 @@
         {4}=THEN(a,b).id("j");
     </chain>
 
-    <chain abstract="true" id="base">
+    <chain abstract="true" name="base">
         THEN(a, b, {0}, {1})
     </chain>
 
diff --git a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/flow.el.yml b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/flow.el.yml
new file mode 100644
index 000000000..b79e458fe
--- /dev/null
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/abstractChain/flow.el.yml
@@ -0,0 +1,18 @@
+flow:
+  chain:
+    - id: implB
+      extends: base2
+      value: "{3}=THEN(a,b);\n {4}=j;"
+    - id: implC
+      extends: base2
+      value: "{3}=THEN(a,b);\n {4}=THEN(a,b).id(\"j\");"
+    - id: base
+      abstract: true
+      value: "THEN(a, b, {0}, {1});"
+    - id: implA
+      extends: base
+      value: "{0}=IF(c, d, e);\n  {1}=SWITCH(f).to(j,k);"
+    - id: base2
+      extends: base
+      abstract: true
+      value: "{0}=THEN(a,b,{3});\n {1}=SWITCH(f).to({4},k);"