diff --git a/src/main/java/haidnor/jvm/core/JavaExecutionEngine.java b/src/main/java/haidnor/jvm/core/JavaExecutionEngine.java
index dad918f..80d4ded 100644
--- a/src/main/java/haidnor/jvm/core/JavaExecutionEngine.java
+++ b/src/main/java/haidnor/jvm/core/JavaExecutionEngine.java
@@ -102,8 +102,8 @@ public class JavaExecutionEngine {
             try {
                 // 执行字节码指令
                 instruction.execute(frame);
-                // 若为 return 系列指令则结束当前栈帧
-                if (instruction instanceof RETURN || instruction instanceof ARETURN || instruction instanceof DRETURN || instruction instanceof FRETURN || instruction instanceof IRETURN) {
+                // 若为 return 系列指令则结束当前栈帧 (RETURN,ARETURN,DRETURN,FRETURN,IRETURN)
+                if (instruction instanceof ReturnableInstruction) {
                     break;
                 }
                 // 程序计数器值增加. 指向下一次执行的字节码行号
diff --git a/src/main/java/haidnor/jvm/instruction/control/ARETURN.java b/src/main/java/haidnor/jvm/instruction/control/ARETURN.java
index 15533cb..1dc6f41 100644
--- a/src/main/java/haidnor/jvm/instruction/control/ARETURN.java
+++ b/src/main/java/haidnor/jvm/instruction/control/ARETURN.java
@@ -1,12 +1,11 @@
 package haidnor.jvm.instruction.control;
 
-import haidnor.jvm.instruction.Instruction;
 import haidnor.jvm.runtime.Frame;
 import haidnor.jvm.runtime.StackValue;
 import haidnor.jvm.util.CodeStream;
 import haidnor.jvm.util.JvmThreadHolder;
 
-public class ARETURN extends Instruction {
+public class ARETURN extends ReturnableInstruction {
 
     public ARETURN(CodeStream codeStream) {
         super(codeStream);
diff --git a/src/main/java/haidnor/jvm/instruction/control/DRETURN.java b/src/main/java/haidnor/jvm/instruction/control/DRETURN.java
index 16da89f..eaab65e 100644
--- a/src/main/java/haidnor/jvm/instruction/control/DRETURN.java
+++ b/src/main/java/haidnor/jvm/instruction/control/DRETURN.java
@@ -1,12 +1,11 @@
 package haidnor.jvm.instruction.control;
 
-import haidnor.jvm.instruction.Instruction;
 import haidnor.jvm.runtime.Frame;
 import haidnor.jvm.runtime.StackValue;
 import haidnor.jvm.util.CodeStream;
 import haidnor.jvm.util.JvmThreadHolder;
 
-public class DRETURN extends Instruction {
+public class DRETURN extends ReturnableInstruction {
 
     public DRETURN(CodeStream codeStream) {
         super(codeStream);
diff --git a/src/main/java/haidnor/jvm/instruction/control/FRETURN.java b/src/main/java/haidnor/jvm/instruction/control/FRETURN.java
index b0bc326..694df1c 100644
--- a/src/main/java/haidnor/jvm/instruction/control/FRETURN.java
+++ b/src/main/java/haidnor/jvm/instruction/control/FRETURN.java
@@ -1,12 +1,11 @@
 package haidnor.jvm.instruction.control;
 
-import haidnor.jvm.instruction.Instruction;
 import haidnor.jvm.runtime.Frame;
 import haidnor.jvm.runtime.StackValue;
 import haidnor.jvm.util.CodeStream;
 import haidnor.jvm.util.JvmThreadHolder;
 
-public class FRETURN extends Instruction {
+public class FRETURN extends ReturnableInstruction {
 
     public FRETURN(CodeStream codeStream) {
         super(codeStream);
diff --git a/src/main/java/haidnor/jvm/instruction/control/IRETURN.java b/src/main/java/haidnor/jvm/instruction/control/IRETURN.java
index f7781c0..294ba2e 100644
--- a/src/main/java/haidnor/jvm/instruction/control/IRETURN.java
+++ b/src/main/java/haidnor/jvm/instruction/control/IRETURN.java
@@ -1,12 +1,11 @@
 package haidnor.jvm.instruction.control;
 
-import haidnor.jvm.instruction.Instruction;
 import haidnor.jvm.runtime.Frame;
 import haidnor.jvm.runtime.StackValue;
 import haidnor.jvm.util.CodeStream;
 import haidnor.jvm.util.JvmThreadHolder;
 
-public class IRETURN extends Instruction {
+public class IRETURN extends ReturnableInstruction {
 
     public IRETURN(CodeStream codeStream) {
         super(codeStream);
diff --git a/src/main/java/haidnor/jvm/instruction/control/LRETURN.java b/src/main/java/haidnor/jvm/instruction/control/LRETURN.java
index 2fa2187..50de213 100644
--- a/src/main/java/haidnor/jvm/instruction/control/LRETURN.java
+++ b/src/main/java/haidnor/jvm/instruction/control/LRETURN.java
@@ -1,12 +1,11 @@
 package haidnor.jvm.instruction.control;
 
-import haidnor.jvm.instruction.Instruction;
 import haidnor.jvm.runtime.Frame;
 import haidnor.jvm.runtime.StackValue;
 import haidnor.jvm.util.CodeStream;
 import haidnor.jvm.util.JvmThreadHolder;
 
-public class LRETURN extends Instruction {
+public class LRETURN extends ReturnableInstruction {
 
     public LRETURN(CodeStream codeStream) {
         super(codeStream);
diff --git a/src/main/java/haidnor/jvm/instruction/control/RETURN.java b/src/main/java/haidnor/jvm/instruction/control/RETURN.java
index 56ff11a..596082f 100644
--- a/src/main/java/haidnor/jvm/instruction/control/RETURN.java
+++ b/src/main/java/haidnor/jvm/instruction/control/RETURN.java
@@ -1,11 +1,10 @@
 package haidnor.jvm.instruction.control;
 
-import haidnor.jvm.instruction.Instruction;
 import haidnor.jvm.runtime.Frame;
 import haidnor.jvm.util.CodeStream;
 import haidnor.jvm.util.JvmThreadHolder;
 
-public class RETURN extends Instruction {
+public class RETURN extends ReturnableInstruction {
 
     public RETURN(CodeStream codeStream) {
         super(codeStream);
diff --git a/src/main/java/haidnor/jvm/instruction/control/ReturnableInstruction.java b/src/main/java/haidnor/jvm/instruction/control/ReturnableInstruction.java
new file mode 100644
index 0000000..5e00204
--- /dev/null
+++ b/src/main/java/haidnor/jvm/instruction/control/ReturnableInstruction.java
@@ -0,0 +1,15 @@
+package haidnor.jvm.instruction.control;
+
+import haidnor.jvm.instruction.Instruction;
+import haidnor.jvm.util.CodeStream;
+
+/**
+ * return 系列字节码指令的抽象类
+ */
+public abstract class ReturnableInstruction extends Instruction {
+
+    public ReturnableInstruction(CodeStream codeStream) {
+        super(codeStream);
+    }
+
+}