diff --git a/Runtime/Procedures/Startup/ProcedureLauncherState.cs b/Runtime/Procedures/Startup/ProcedureLauncherState.cs
index f6b7cb9..1bf5fad 100644
--- a/Runtime/Procedures/Startup/ProcedureLauncherState.cs
+++ b/Runtime/Procedures/Startup/ProcedureLauncherState.cs
@@ -39,6 +39,7 @@ private async UniTask StartLauncherUIAsync(IFsm<IProcedureManager> procedureOwne
             GameApp.Web.RemoveBaseHeader(StartupProcedureUtility.GameFrameXApiKeyHeader);
             GameApp.Web.RemoveBaseHeader(StartupProcedureUtility.GameFrameXAppIdHeader);
             GameApp.Web.RemoveBaseHeader(StartupProcedureUtility.GameFrameXAppSecretHeader);
+            GameApp.Web.RemoveBaseHeader(StartupProcedureUtility.GameFrameXTenantSecretHeader);
 
             foreach (var header in StartupProcedureUtility.CreateGameFrameXHeaders(options))
             {
diff --git a/Runtime/Procedures/StartupProcedureUtility.cs b/Runtime/Procedures/StartupProcedureUtility.cs
index a2f9168..1581a8e 100644
--- a/Runtime/Procedures/StartupProcedureUtility.cs
+++ b/Runtime/Procedures/StartupProcedureUtility.cs
@@ -16,9 +16,10 @@ namespace GameFrameX.Startup.Runtime
     /// </remarks>
     internal static class StartupProcedureUtility
     {
-        public const string GameFrameXApiKeyHeader = "GameFrameX-Api-Key";
+        public const string GameFrameXApiKeyHeader = "GameFrameX-Tenant-Id";
         public const string GameFrameXAppIdHeader = "GameFrameX-App-Id";
         public const string GameFrameXAppSecretHeader = "GameFrameX-App-Secret";
+        public const string GameFrameXTenantSecretHeader = "GameFrameX-Tenant-Secret";
 
         /// <summary>
         /// 从流程所有者中获取启动选项。
@@ -104,7 +105,7 @@ public static Dictionary<string, object> CreateHttpParams(StartupOptions options
 
         public static Dictionary<string, string> CreateGameFrameXHeaders(StartupOptions options)
         {
-            var headers = new Dictionary<string, string>(3);
+            var headers = new Dictionary<string, string>(4);
             if (options == null)
             {
                 return headers;
@@ -113,6 +114,7 @@ public static Dictionary<string, string> CreateGameFrameXHeaders(StartupOptions
             AddHeaderIfNotEmpty(headers, GameFrameXApiKeyHeader, options.GameFrameXApiKey);
             AddHeaderIfNotEmpty(headers, GameFrameXAppIdHeader, options.GameFrameXAppId);
             AddHeaderIfNotEmpty(headers, GameFrameXAppSecretHeader, options.GameFrameXAppSecret);
+            AddHeaderIfNotEmpty(headers, GameFrameXTenantSecretHeader, options.GameFrameXTenantSecret);
             return headers;
         }
 
diff --git a/Runtime/Startup/StartupOptions.cs b/Runtime/Startup/StartupOptions.cs
index 6cae678..e62b139 100644
--- a/Runtime/Startup/StartupOptions.cs
+++ b/Runtime/Startup/StartupOptions.cs
@@ -12,6 +12,7 @@ public sealed class StartupOptions : ScriptableObject
         [Header("Admin")] [Tooltip("GameFrameX 管理后台的租户ID")]
         public string GameFrameXApiKey = "";
 
+        [Tooltip("GameFrameX 管理后台的租户密钥")] public string GameFrameXTenantSecret = "";
         [Tooltip("GameFrameX 管理后台的应用ID")] public string GameFrameXAppId = "";
         [Tooltip("GameFrameX 管理后台的应用密钥")] public string GameFrameXAppSecret = "";
 
@@ -48,4 +49,4 @@ public sealed class StartupOptions : ScriptableObject
         [Tooltip("启动 UI 的资源路径，传给 IStartupUIHandler。")]
         public string LauncherUIResName = "UI/UILauncher";
     }
-}
\ No newline at end of file
+}
diff --git a/Tests/Runtime/StartupOptionsTests.cs b/Tests/Runtime/StartupOptionsTests.cs
index 0c2c75a..d676d6e 100644
--- a/Tests/Runtime/StartupOptionsTests.cs
+++ b/Tests/Runtime/StartupOptionsTests.cs
@@ -25,6 +25,7 @@ public void DefaultValues_AreCorrect()
             Assert.IsNotNull(options.GlobalInfoUrls);
             Assert.AreEqual(0, options.GlobalInfoUrls.Length, "GlobalInfoUrls default should be empty array");
             Assert.AreEqual(string.Empty, options.GameFrameXApiKey);
+            Assert.AreEqual(string.Empty, options.GameFrameXTenantSecret);
             Assert.AreEqual(string.Empty, options.GameFrameXAppId);
             Assert.AreEqual(string.Empty, options.GameFrameXAppSecret);
             Assert.AreEqual(3, options.MaxAttemptsPerUrl);
@@ -64,11 +65,11 @@ public void HasCreateAssetMenuAttribute()
         }
 
         [Test]
-        public void HasFifteenPublicFields()
+        public void HasSixteenPublicFields()
         {
             var publicFields = typeof(StartupOptions).GetFields(BindingFlags.Public | BindingFlags.Instance);
-            Assert.AreEqual(15, publicFields.Length,
-                "StartupOptions should expose exactly 15 public fields per spec §3.1.1");
+            Assert.AreEqual(16, publicFields.Length,
+                "StartupOptions should expose exactly 16 public fields per spec §3.1.1");
         }
 
         [Test]
@@ -76,6 +77,7 @@ public void CreateGameFrameXHeaders_OnlyIncludesNonEmptyValues()
         {
             var options = ScriptableObject.CreateInstance<StartupOptions>();
             options.GameFrameXApiKey = "api-key";
+            options.GameFrameXTenantSecret = "tenant-secret";
             options.GameFrameXAppId = "";
             options.GameFrameXAppSecret = "app-secret";
 
@@ -83,9 +85,11 @@ public void CreateGameFrameXHeaders_OnlyIncludesNonEmptyValues()
             var method = utilityType.GetMethod("CreateGameFrameXHeaders", BindingFlags.Public | BindingFlags.Static);
             var headers = (Dictionary<string, string>)method.Invoke(null, new object[] { options });
 
-            Assert.AreEqual(2, headers.Count);
-            Assert.AreEqual("api-key", headers["GameFrameX-Api-Key"]);
+            Assert.AreEqual(3, headers.Count);
+            Assert.AreEqual("api-key", headers["GameFrameX-Tenant-Id"]);
+            Assert.AreEqual("tenant-secret", headers["GameFrameX-Tenant-Secret"]);
             Assert.AreEqual("app-secret", headers["GameFrameX-App-Secret"]);
+            Assert.IsFalse(headers.ContainsKey("GameFrameX-Api-Key"));
             Assert.IsFalse(headers.ContainsKey("GameFrameX-App-Id"));
         }
     }