diff --git a/aio-pro/src/main/java/org/smartboot/socket/extension/decoder/DelimiterFrameDecoder.java b/aio-pro/src/main/java/org/smartboot/socket/extension/decoder/DelimiterFrameDecoder.java
index 3efd15d9c2aa740ead6d22070429dd83ba7fbdab..7f908d7fecf6b1350d40f3be90e0188d2f4ed47a 100644
--- a/aio-pro/src/main/java/org/smartboot/socket/extension/decoder/DelimiterFrameDecoder.java
+++ b/aio-pro/src/main/java/org/smartboot/socket/extension/decoder/DelimiterFrameDecoder.java
@@ -40,6 +40,12 @@ public class DelimiterFrameDecoder implements SmartDecoder {
     private int position;
 
     public DelimiterFrameDecoder(byte[] endFLag, int unitBufferSize) {
+        if(endFLag == null || endFLag.length == 0){
+            throw new IllegalArgumentException("endFLag cannot be empty");
+        }
+        if(unitBufferSize < 1){
+            throw new IllegalArgumentException("unitBufferSize Must be greater than 1");
+        }
         this.endFLag = endFLag;
         int p = 0;
         for (int i = 1; i < endFLag.length; i++) {