diff --git a/Service/Charger/Codec/Decoder.cs b/Service/Charger/Codec/Decoder.cs
index c6612f5..0aaa06d 100644
--- a/Service/Charger/Codec/Decoder.cs
+++ b/Service/Charger/Codec/Decoder.cs
@@ -10,8 +10,6 @@ using Service.Charger.Msg;
 using Service.Charger.Msg.Bms;
 using Service.Charger.Msg.Charger.Req;
 using Service.Charger.Msg.Charger.Resp;
-using Service.Charger.Msg.Host.Req;
-using static System.Net.Mime.MediaTypeNames;
 
 namespace Service.Charger.Codec;
 
@@ -48,6 +46,11 @@ public class Decoder : ByteToMessageDecoder
             int frameLength = buffer.GetUnsignedShortLE(buffer.ReaderIndex + frameLengthIndex);
             //总帧长
             int totalFrameLength = delimiterIndex + delimiter.Capacity + 2 + frameLength;
+            // 最小总帧长过滤
+            if (totalFrameLength < 24)
+            {
+                return;
+            }
 
             if (buffer.ReadableBytes < totalFrameLength)
             {