diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/Node.java b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/Node.java
index 25493cd7d..b6193d455 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/Node.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/Node.java
@@ -81,10 +81,38 @@ public class Node implements Executable, Cloneable, Rollbackable{
 	private TransmittableThreadLocal<Boolean> accessResult = new TransmittableThreadLocal<>();
 
 	// 循环下标
-	private TransmittableThreadLocal<Stack<TupleOf2<Integer, Integer>>> loopIndexTL = new TransmittableThreadLocal<>();
+	private TransmittableThreadLocal<Stack<Integer>> loopIndexTL = new TransmittableThreadLocal<Stack<Integer>>() {
+		/**
+		 * 在你提供的这个 TTL 版本中，我们重写 public T copy(T parentValue) 方法
+		 * 来实现 Stack 的克隆，以确保线程隔离。
+		 */
+		@Override
+		public Stack<Integer> copy(Stack<Integer> parentValue) {
+			if (parentValue == null) {
+				return null;
+			}
+			// 克隆 Stack
+			return (Stack<Integer>) parentValue.clone();
+		}
+	};
+
+
 
 	// 迭代对象
-	private TransmittableThreadLocal<Stack<TupleOf2<Integer, Object>>> loopObjectTL = new TransmittableThreadLocal<>();
+	private TransmittableThreadLocal<Stack<Object>> loopObjectTL = new TransmittableThreadLocal<Stack<Object>>() {
+		/**
+		 * 在你提供的这个 TTL 版本中，我们重写 public T copy(T parentValue) 方法
+		 * 来实现 Stack 的克隆，以确保线程隔离。
+		 */
+		@Override
+		public Stack<Object> copy(Stack<Object> parentValue) {
+			if (parentValue == null) {
+				return null;
+			}
+			// 克隆 Stack
+			return (Stack<Object>) parentValue.clone();
+		}
+	};
 
 	// 当前slot的index
 	private TransmittableThreadLocal<Integer> slotIndexTL = new TransmittableThreadLocal<>();
@@ -355,19 +383,12 @@ public class Node implements Executable, Cloneable, Rollbackable{
 		try{
 			lock4LoopIndex.lock();
 			if (this.loopIndexTL.get() == null){
-				Stack<TupleOf2<Integer, Integer>> stack = new Stack<>();
-				TupleOf2<Integer, Integer> tuple = new TupleOf2<>(condition.hashCode(), index);
-				stack.push(tuple);
+				Stack<Integer> stack = new Stack<>();
+				stack.push(index);
 				this.loopIndexTL.set(stack);
 			}else{
-				Stack<TupleOf2<Integer, Integer>> stack = this.loopIndexTL.get();
-				TupleOf2<Integer, Integer> thisConditionTuple =  stack.stream().filter(tuple -> tuple.getA().equals(condition.hashCode())).findFirst().orElse(null);
-				if (thisConditionTuple != null){
-					thisConditionTuple.setB(index);
-				}else{
-					TupleOf2<Integer, Integer> tuple = new TupleOf2<>(condition.hashCode(), index);
-					stack.push(tuple);
-				}
+				Stack<Integer> stack = this.loopIndexTL.get();
+				stack.push(index);
 			}
 		}finally {
 			lock4LoopIndex.unlock();
@@ -376,9 +397,9 @@ public class Node implements Executable, Cloneable, Rollbackable{
 	}
 
 	public Integer getLoopIndex() {
-		Stack<TupleOf2<Integer, Integer>> stack = this.loopIndexTL.get();
+		Stack<Integer> stack = this.loopIndexTL.get();
 		if (stack != null){
-			return stack.peek().getB();
+			return stack.peek();
 		}else{
 			return null;
 		}
@@ -389,9 +410,9 @@ public class Node implements Executable, Cloneable, Rollbackable{
 	}
 
 	public Integer getPreNLoopIndex(int n){
-		Stack<TupleOf2<Integer, Integer>> stack = this.loopIndexTL.get();
+		Stack<Integer> stack = this.loopIndexTL.get();
 		if (stack != null && stack.size() > n){
-			return stack.elementAt(stack.size() - (n + 1)).getB();
+			return stack.elementAt(stack.size() - (n + 1));
 		}else{
 			return null;
 		}
@@ -400,7 +421,7 @@ public class Node implements Executable, Cloneable, Rollbackable{
 	public void removeLoopIndex() {
 		try{
 			lock4LoopIndex.lock();
-			Stack<TupleOf2<Integer, Integer>> stack = this.loopIndexTL.get();
+			Stack<Integer> stack = this.loopIndexTL.get();
 			if (stack != null){
 				if (stack.size() > 1){
 					stack.pop();
@@ -420,19 +441,12 @@ public class Node implements Executable, Cloneable, Rollbackable{
 		try{
 			lock4LoopObj.lock();
 			if (this.loopObjectTL.get() == null){
-				Stack<TupleOf2<Integer, Object>> stack = new Stack<>();
-				TupleOf2<Integer, Object> tuple = new TupleOf2<>(condition.hashCode(), obj);
-				stack.push(tuple);
+				Stack<Object> stack = new Stack<>();
+				stack.push(obj);
 				this.loopObjectTL.set(stack);
 			}else{
-				Stack<TupleOf2<Integer, Object>> stack = this.loopObjectTL.get();
-				TupleOf2<Integer, Object> thisConditionTuple =  stack.stream().filter(tuple -> tuple.getA().equals(condition.hashCode())).findFirst().orElse(null);
-				if (thisConditionTuple != null){
-					thisConditionTuple.setB(obj);
-				}else{
-					TupleOf2<Integer, Object> tuple = new TupleOf2<>(condition.hashCode(), obj);
-					stack.push(tuple);
-				}
+				Stack<Object> stack = this.loopObjectTL.get();
+				stack.push(obj);
 			}
 		}finally {
 			lock4LoopObj.unlock();
@@ -440,9 +454,9 @@ public class Node implements Executable, Cloneable, Rollbackable{
 	}
 
 	public <T> T getCurrLoopObject() {
-		Stack<TupleOf2<Integer, Object>> stack = this.loopObjectTL.get();
+		Stack<Object> stack = this.loopObjectTL.get();
 		if (stack != null){
-			return (T) stack.peek().getB();
+			return (T) stack.peek();
 		}else{
 			return null;
 		}
@@ -453,9 +467,9 @@ public class Node implements Executable, Cloneable, Rollbackable{
 	}
 
 	public <T> T getPreNLoopObject(int n){
-		Stack<TupleOf2<Integer, Object>> stack = this.loopObjectTL.get();
+		Stack<Object> stack = this.loopObjectTL.get();
 		if (stack != null && stack.size() > n){
-			return (T) stack.elementAt(stack.size() - (n + 1)).getB();
+			return (T) stack.elementAt(stack.size() - (n + 1));
 		}else{
 			return null;
 		}
@@ -464,7 +478,7 @@ public class Node implements Executable, Cloneable, Rollbackable{
 	public void removeCurrLoopObject() {
 		try{
 			lock4LoopObj.lock();
-			Stack<TupleOf2<Integer, Object>> stack = this.loopObjectTL.get();
+			Stack<Object> stack = this.loopObjectTL.get();
 			if (stack != null){
 				if (stack.size() > 1){
 					stack.pop();
diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/condition/IteratorCondition.java b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/condition/IteratorCondition.java
index 6ebcb0a87..b427241cf 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/condition/IteratorCondition.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/condition/IteratorCondition.java
@@ -87,8 +87,7 @@ public class IteratorCondition extends LoopCondition {
                 //存储所有的并行执行子项的CompletableFuture
                 List<CompletableFuture<LoopFutureObj>> futureList = new ArrayList<>();
                 //获取并行循环的线程池
-                ExecutorService parallelExecutor = ExecutorHelper.loadInstance().buildExecutorService(this, slotIndex
-                        , this.getConditionType());
+                ExecutorService parallelExecutor = ExecutorHelper.loadInstance().buildExecutorService(this, slotIndex , this.getConditionType());
                 while (it.hasNext()) {
                     Object itObj = it.next();
                     //提交异步任务
diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/util/TupleOf2.java b/liteflow-core/src/main/java/com/yomahub/liteflow/util/TupleOf2.java
index 3a9730205..c965c66f4 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/util/TupleOf2.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/util/TupleOf2.java
@@ -1,6 +1,6 @@
 package com.yomahub.liteflow.util;
 
-public class TupleOf2<A, B> {
+public class TupleOf2<A, B> implements Cloneable{
 
     private A a;
 
@@ -26,4 +26,13 @@ public class TupleOf2<A, B> {
     public void setB(B b) {
         this.b = b;
     }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public TupleOf2<A, B> clone() throws CloneNotSupportedException {
+        TupleOf2<A, B> newObject = (TupleOf2<A, B>)super.clone();
+        newObject.setA(this.getA());
+        newObject.setB(this.getB());
+        return newObject;
+    }
 }
diff --git a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/IteratorELSpringbootTest.java b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/IteratorELSpringbootTest.java
index 3bbb52f8c..b2fcc5437 100644
--- a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/IteratorELSpringbootTest.java
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/IteratorELSpringbootTest.java
@@ -12,7 +12,9 @@ import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.test.context.TestPropertySource;
 import javax.annotation.Resource;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 /**
  * springboot环境EL常规的例子测试
@@ -72,9 +74,13 @@ public class IteratorELSpringbootTest extends BaseTest {
 	//测试多层迭代异步循环的正确性
 	@Test
 	public void testIt5() throws Exception {
-		for (int i = 0; i < 100; i++) {
-			LiteflowResponse response = flowExecutor.execute2Resp("chain5");
-			Assertions.assertTrue(response.isSuccess());
-		}
+		DefaultContext context = new DefaultContext();
+		context.setData("set", new HashSet<>());
+		context.setData("list1", ListUtil.toList("a", "b", "c"));
+		context.setData("list2", ListUtil.toList("1", "2", "3", "4"));
+		LiteflowResponse response = flowExecutor.execute2Resp("chain5",null, context);
+		Assertions.assertTrue(response.isSuccess());
+		Set<String> set = context.getData("set");
+		Assertions.assertEquals(12, set.size());
 	}
 }
diff --git a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/FCmp.java b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/FCmp.java
index 570973b93..10f62bb74 100644
--- a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/FCmp.java
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/FCmp.java
@@ -6,6 +6,8 @@ import com.yomahub.liteflow.core.NodeComponent;
 import com.yomahub.liteflow.slot.DefaultContext;
 import org.springframework.stereotype.Component;
 
+import java.util.Set;
+
 @Component("f")
 public class FCmp extends NodeComponent {
 
@@ -16,6 +18,9 @@ public class FCmp extends NodeComponent {
 		if (obj1 == null || obj2 == null) {
 			throw new RuntimeException("");
 		}
-		System.out.println(StrUtil.format("{}{}", obj1, obj2));
+		String str = StrUtil.format("{}{}", obj1, obj2);
+		DefaultContext context = this.getFirstContextBean();
+		Set<String> set = context.getData("set");
+		set.add(str);
 	}
 }
diff --git a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/X1Cmp.java b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/X1Cmp.java
index 361eabb78..2f270ee49 100644
--- a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/X1Cmp.java
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/X1Cmp.java
@@ -3,6 +3,7 @@ package com.yomahub.liteflow.test.iterator.cmp;
 import cn.hutool.core.collection.ListUtil;
 import com.yomahub.liteflow.annotation.LiteflowComponent;
 import com.yomahub.liteflow.core.NodeIteratorComponent;
+import com.yomahub.liteflow.slot.DefaultContext;
 
 import java.util.Iterator;
 import java.util.List;
@@ -11,7 +12,8 @@ import java.util.List;
 public class X1Cmp extends NodeIteratorComponent {
     @Override
     public Iterator<?> processIterator() throws Exception {
-        List<String> list = ListUtil.toList("a", "b", "c");
+        DefaultContext context = this.getFirstContextBean();
+        List<String> list = context.getData("list1");
         return list.iterator();
     }
 }
diff --git a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/X2Cmp.java b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/X2Cmp.java
index 0c07eaab3..6e6320960 100644
--- a/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/X2Cmp.java
+++ b/liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/X2Cmp.java
@@ -3,6 +3,7 @@ package com.yomahub.liteflow.test.iterator.cmp;
 import cn.hutool.core.collection.ListUtil;
 import com.yomahub.liteflow.annotation.LiteflowComponent;
 import com.yomahub.liteflow.core.NodeIteratorComponent;
+import com.yomahub.liteflow.slot.DefaultContext;
 
 import java.util.Iterator;
 import java.util.List;
@@ -11,7 +12,8 @@ import java.util.List;
 public class X2Cmp extends NodeIteratorComponent {
     @Override
     public Iterator<?> processIterator() throws Exception {
-        List<String> list = ListUtil.toList("11", "22");
+        DefaultContext context = this.getFirstContextBean();
+        List<String> list = context.getData("list2");
         return list.iterator();
     }
 }
diff --git a/pom.xml b/pom.xml
index 859a6e788..d14ba8525 100644
--- a/pom.xml
+++ b/pom.xml
@@ -53,7 +53,7 @@
 		<curator.version>5.3.0</curator.version>
 		<junit.version>5.8.2</junit.version>
 		<hutool.version>5.8.26</hutool.version>
-		<transmittable-thread-local.version>2.12.3</transmittable-thread-local.version>
+		<transmittable-thread-local.version>2.14.5</transmittable-thread-local.version>
 		<curator-test.version>5.1.0</curator-test.version>
 		<zkclient.version>0.10</zkclient.version>
 		<jetcd.version>0.7.3</jetcd.version>