diff --git a/Assets/TEngine/Runtime/Utility/ByteHelper.cs b/Assets/TEngine/Runtime/Utility/ByteHelper.cs
new file mode 100644
index 00000000..35505c90
--- /dev/null
+++ b/Assets/TEngine/Runtime/Utility/ByteHelper.cs
@@ -0,0 +1,107 @@
+using System.Text;
+
+namespace TEngine
+{
+    public static class ByteHelper
+    {
+        public static string ToHex(this byte b)
+        {
+            return b.ToString("X2");
+        }
+
+        public static string ToHex(this byte[] bytes)
+        {
+            StringBuilder stringBuilder = new StringBuilder();
+            foreach (byte b in bytes)
+            {
+                stringBuilder.Append(b.ToString("X2"));
+            }
+
+            return stringBuilder.ToString();
+        }
+
+        public static string ToHex(this byte[] bytes, string format)
+        {
+            StringBuilder stringBuilder = new StringBuilder();
+            foreach (byte b in bytes)
+            {
+                stringBuilder.Append(b.ToString(format));
+            }
+
+            return stringBuilder.ToString();
+        }
+
+        public static string ToHex(this byte[] bytes, int offset, int count)
+        {
+            StringBuilder stringBuilder = new StringBuilder();
+            for (int i = offset; i < offset + count; ++i)
+            {
+                stringBuilder.Append(bytes[i].ToString("X2"));
+            }
+
+            return stringBuilder.ToString();
+        }
+
+        public static string ToStr(this byte[] bytes)
+        {
+            return Encoding.Default.GetString(bytes);
+        }
+
+        public static string ToStr(this byte[] bytes, int index, int count)
+        {
+            return Encoding.Default.GetString(bytes, index, count);
+        }
+
+        public static string Utf8ToStr(this byte[] bytes)
+        {
+            return Encoding.UTF8.GetString(bytes);
+        }
+
+        public static string Utf8ToStr(this byte[] bytes, int index, int count)
+        {
+            return Encoding.UTF8.GetString(bytes, index, count);
+        }
+
+        public static void WriteTo(this byte[] bytes, int offset, uint num)
+        {
+            bytes[offset] = (byte)(num & 0xff);
+            bytes[offset + 1] = (byte)((num & 0xff00) >> 8);
+            bytes[offset + 2] = (byte)((num & 0xff0000) >> 16);
+            bytes[offset + 3] = (byte)((num & 0xff000000) >> 24);
+        }
+
+        public static void WriteTo(this byte[] bytes, int offset, int num)
+        {
+            bytes[offset] = (byte)(num & 0xff);
+            bytes[offset + 1] = (byte)((num & 0xff00) >> 8);
+            bytes[offset + 2] = (byte)((num & 0xff0000) >> 16);
+            bytes[offset + 3] = (byte)((num & 0xff000000) >> 24);
+        }
+
+        public static void WriteTo(this byte[] bytes, int offset, byte num)
+        {
+            bytes[offset] = num;
+        }
+
+        public static void WriteTo(this byte[] bytes, int offset, short num)
+        {
+            bytes[offset] = (byte)(num & 0xff);
+            bytes[offset + 1] = (byte)((num & 0xff00) >> 8);
+        }
+
+        public static void WriteTo(this byte[] bytes, int offset, ushort num)
+        {
+            bytes[offset] = (byte)(num & 0xff);
+            bytes[offset + 1] = (byte)((num & 0xff00) >> 8);
+        }
+
+        public static unsafe void WriteTo(this byte[] bytes, int offset, long num)
+        {
+            byte* bPoint = (byte*)&num;
+            for (int i = 0; i < sizeof(long); ++i)
+            {
+                bytes[offset + i] = bPoint[i];
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Assets/TEngine/Runtime/Utility/ByteHelper.cs.meta b/Assets/TEngine/Runtime/Utility/ByteHelper.cs.meta
new file mode 100644
index 00000000..6de651c7
--- /dev/null
+++ b/Assets/TEngine/Runtime/Utility/ByteHelper.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: c577d22a071e44c6bf0c2a0ed5964fbe
+timeCreated: 1682418991
\ No newline at end of file