diff --git a/src/Oms.Application/Integrations/SmallBagTrack/SmallBagTrackCurlBuilder.cs b/src/Oms.Application/Integrations/SmallBagTrack/SmallBagTrackCurlBuilder.cs
new file mode 100644
index 0000000..cdf27c4
--- /dev/null
+++ b/src/Oms.Application/Integrations/SmallBagTrack/SmallBagTrackCurlBuilder.cs
@@ -0,0 +1,37 @@
+using System.Text;
+using System.Text.Json;
+
+namespace Oms.Application.Integrations.SmallBagTrack;
+
+internal static class SmallBagTrackCurlBuilder
+{
+    public static string Build(
+        string url,
+        string appKey,
+        long timestamp,
+        string sign,
+        string? authorization,
+        object body,
+        JsonSerializerOptions jsonOptions)
+    {
+        var bodyJson = JsonSerializer.Serialize(body, jsonOptions);
+        var sb = new StringBuilder();
+        sb.AppendLine($"curl --location --request POST '{url}' \\");
+        sb.AppendLine($"--header 'appKey: {appKey}' \\");
+        sb.AppendLine($"--header 'timestamp: {timestamp}' \\");
+        sb.AppendLine($"--header 'sign: {sign}' \\");
+        if (!string.IsNullOrWhiteSpace(authorization))
+        {
+            sb.AppendLine($"--header 'Authorization: {authorization.Trim()}' \\");
+        }
+
+        sb.AppendLine("--header 'Content-Type: application/json' \\");
+        sb.Append("--data-raw '");
+        sb.Append(EscapeForSingleQuotedShell(bodyJson));
+        sb.Append('\'');
+        return sb.ToString();
+    }
+
+    private static string EscapeForSingleQuotedShell(string value) =>
+        value.Replace("'", "'\\''", StringComparison.Ordinal);
+}
diff --git a/src/Oms.Application/Integrations/SmallBagTrack/SmallBagTrackOrderClient.cs b/src/Oms.Application/Integrations/SmallBagTrack/SmallBagTrackOrderClient.cs
index 0522cf0..5149e26 100644
--- a/src/Oms.Application/Integrations/SmallBagTrack/SmallBagTrackOrderClient.cs
+++ b/src/Oms.Application/Integrations/SmallBagTrack/SmallBagTrackOrderClient.cs
@@ -72,20 +72,8 @@ internal sealed class SmallBagTrackOrderClient(
         var body = SmallBagTrackUpsertApiRequest.FromBusinessRequest(request);
         var url = SmallBagTrackUpsertApiRequest.BuildEndpointUrl(settings.BaseUrl);
         var authorization = ResolveAuthorization(request);
-        var requestJson = JsonSerializer.Serialize(
-            new
-            {
-                auth = new
-                {
-                    appKey,
-                    timestamp,
-                    sign,
-                    transport = "header",
-                    authorizationForwarded = !string.IsNullOrWhiteSpace(authorization)
-                },
-                body
-            },
-            JsonOptions);
+        var curlCommand = SmallBagTrackCurlBuilder.Build(url, appKey, timestamp, sign, authorization, body, JsonOptions);
+        var requestJson = JsonSerializer.Serialize(body, JsonOptions);
 
         using var httpRequest = new HttpRequestMessage(HttpMethod.Post, url);
         httpRequest.Headers.TryAddWithoutValidation("appKey", appKey);
@@ -105,6 +93,7 @@ internal sealed class SmallBagTrackOrderClient(
             Success = response.IsSuccessStatusCode,
             Url = url,
             RequestJson = requestJson,
+            CurlCommand = curlCommand,
             StatusCode = (int)response.StatusCode,
             ResponseBody = responseBody
         };
diff --git a/src/Oms.Application/Integrations/SmallBagTrack/SmallBagTrackUpsertResult.cs b/src/Oms.Application/Integrations/SmallBagTrack/SmallBagTrackUpsertResult.cs
index f200d8a..e4e3883 100644
--- a/src/Oms.Application/Integrations/SmallBagTrack/SmallBagTrackUpsertResult.cs
+++ b/src/Oms.Application/Integrations/SmallBagTrack/SmallBagTrackUpsertResult.cs
@@ -15,6 +15,11 @@ public class SmallBagTrackUpsertResult
 
     public string RequestJson { get; set; } = string.Empty;
 
+    /// <summary>
+    /// 可复现的 curl 命令（含 appKey/timestamp/sign/Authorization 与业务 body）。
+    /// </summary>
+    public string CurlCommand { get; set; } = string.Empty;
+
     public int? StatusCode { get; set; }
 
     public string ResponseBody { get; set; } = string.Empty;