diff --git a/HybirdFrameworkCore/Utils/ModelConvert.cs b/HybirdFrameworkCore/Utils/ModelConvert.cs
index 6d36d16..a2a2090 100644
--- a/HybirdFrameworkCore/Utils/ModelConvert.cs
+++ b/HybirdFrameworkCore/Utils/ModelConvert.cs
@@ -110,8 +110,9 @@ public static class ModelConvert
                 if (start <= attribute.Start)
                 {
                     start = attribute.Start;
-                    length = attribute.Length;
+                    length = PropertyReadConstant.Byte == attribute.Type ? attribute.Length * 8 : attribute.Length;
                 }
+
                 dictionary.Add(attribute, field);
             }
         }
@@ -127,7 +128,7 @@ public static class ModelConvert
             PropertyInfo field = dictionary[attribute];
             byte[] value = GetPropertyValue(t, field, attribute);
             start = attribute.Start;
-            length = attribute.Length;
+            length = PropertyReadConstant.Byte == attribute.Type ? attribute.Length * 8 : attribute.Length;
 
             for (int i = 0; i < length; i++)
             {