diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/Chain.java b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/Chain.java
index 62f6e1abb..f5eef78e6 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/Chain.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/Chain.java
@@ -22,6 +22,7 @@ import com.yomahub.liteflow.log.LFLog;
 import com.yomahub.liteflow.log.LFLoggerManager;
 import com.yomahub.liteflow.slot.DataBus;
 import com.yomahub.liteflow.slot.Slot;
+import com.yomahub.liteflow.util.ElRegexUtil;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -245,7 +246,11 @@ public class Chain implements Executable {
     }
 
     public String getElMd5() {
-        return elMd5 == null ? MD5.create().digestHex(el) : elMd5;
+        // 若为 null 时，先规范化 EL，再计算 MD5
+        if (elMd5 == null) {
+            elMd5 = MD5.create().digestHex(ElRegexUtil.normalize(el));
+        }
+        return elMd5;
     }
 
     public void setElMd5(String elMd5) {
diff --git a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/base/BaseELSpringbootTest.java b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/base/BaseELSpringbootTest.java
index d0f7d56e5..a4ceede08 100644
--- a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/base/BaseELSpringbootTest.java
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/base/BaseELSpringbootTest.java
@@ -89,4 +89,13 @@ public class BaseELSpringbootTest extends BaseTest {
 		Assertions.assertNotEquals(response.getChainId(), response1.getChainId());
 	}
 
+	// 运行文件里同样的 chain
+	@Test
+	public void testBase8() throws Exception {
+		LiteflowResponse response = flowExecutor.execute2RespWithEL("THEN(a,b,SWITCH(e).to(d,f));");
+		Assertions.assertTrue(response.isSuccess());
+		// 应返回 chain2
+		Assertions.assertEquals("chain2", response.getChainId());
+	}
+
 }