diff --git a/src/WWB.UnifyApi/Converter/DistanceFormatConverter.cs b/src/WWB.UnifyApi/Converter/DistanceFormatConverter.cs
new file mode 100644
index 0000000..0c131fd
--- /dev/null
+++ b/src/WWB.UnifyApi/Converter/DistanceFormatConverter.cs
@@ -0,0 +1,55 @@
+using Newtonsoft.Json;
+using System;
+
+namespace WWB.UnifyApi.Converter
+{
+    public class DistanceFormatConverter : JsonConverter
+    {
+        /// <summary>
+        /// 是否开启自定义反序列化，值为true时，反序列化时会走ReadJson方法，值为false时，不走ReadJson方法，而是默认的反序列化
+        /// </summary>
+        public override bool CanRead => false;
+
+        /// <summary>
+        /// 是否开启自定义序列化，值为true时，序列化时会走WriteJson方法，值为false时，不走WriteJson方法，而是默认的序列化
+        /// 类型等于long时才转换
+        /// </summary>
+        /// <param name="objectType"></param>
+        /// <returns></returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return objectType == typeof(long) || objectType == typeof(long?);
+        }
+
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            throw new NotImplementedException("Unnecessary because CanRead is false.The type will skip the converter.");
+        }
+
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            if (value == null)
+            {
+                writer.WriteNull();
+                return;
+            }
+            if (long.TryParse(value.ToString(), out long res))
+            {
+                if (res < 1000)
+                {
+                    writer.WriteValue($"{res}m");
+                }
+                else
+                {
+                    var sValue = (res / 1000).ToString("0.00");
+
+                    writer.WriteValue($"{sValue}km");
+                }
+            }
+            else
+            {
+                writer.WriteNull();
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/WWB.UnifyApi/WWB.UnifyApi.csproj b/src/WWB.UnifyApi/WWB.UnifyApi.csproj
index 3fe5502..57cb698 100644
--- a/src/WWB.UnifyApi/WWB.UnifyApi.csproj
+++ b/src/WWB.UnifyApi/WWB.UnifyApi.csproj
@@ -3,7 +3,7 @@
 	<PropertyGroup>
 		<TargetFramework>netcoreapp3.1</TargetFramework>
 		<PackageId>WWB.UnifyApi</PackageId>
-		<Version>2.0.4</Version>
+		<Version>2.0.5</Version>
 		<Authors>my6521</Authors>
 		<Description>NetCore3.1</Description>
 		<PackageLicenseExpression>MIT</PackageLicenseExpression>