diff --git a/Commands/CommandBuild.cs b/Commands/CommandBuild.cs
index 36fbd4d..8924db4 100644
--- a/Commands/CommandBuild.cs
+++ b/Commands/CommandBuild.cs
@@ -7,6 +7,7 @@
 using EggLink.DanhengServer.Enums.Avatar;
 using EggLink.DanhengServer.Enums.Item;
 using EggLink.DanhengServer.Internationalization;
+using EggLink.DanhengServer.Util;
 
 namespace DanhengPlugin.CharacterBuilder.Commands;
 
@@ -78,6 +79,11 @@ public async ValueTask BuildAvatar(AvatarInfo avatar, CommandArg arg)
     {
         // build avatar
         var player = arg.Target!.Player!;
+        if (player.InventoryManager!.Data.RelicItems.Count + 6 > GameConstants.INVENTORY_MAX_RELIC)
+        {
+            await arg.SendMsg(I18NManager.Translate("CharacterBuilder.InventoryRelicMax"));
+            return;
+        }
         PluginGameData.AvatarRelicRecommendData.TryGetValue(avatar.GetAvatarId(), out var excel);
         if (excel == null)
         {
diff --git a/Language/LanguageCHS.cs b/Language/LanguageCHS.cs
index 640be1f..6489acd 100644
--- a/Language/LanguageCHS.cs
+++ b/Language/LanguageCHS.cs
@@ -15,4 +15,5 @@ public class PluginLanguage
     public string UnloadedCharacterBuilder => "角色构建器插件已卸载！";
     public string NoRecommend => "Excel中不存在推荐遗器";
     public string BuildSuccess => "构建成功！";
+    public string InventoryRelicMax => "背包遗器已满，请先清理背包后再试！";
 }
\ No newline at end of file