diff --git a/src/Utils/NavisworksToDMesh3Converter.cs b/src/Utils/NavisworksToDMesh3Converter.cs
index 65aeb9f..14d61bf 100644
--- a/src/Utils/NavisworksToDMesh3Converter.cs
+++ b/src/Utils/NavisworksToDMesh3Converter.cs
@@ -142,6 +142,8 @@ namespace NavisworksTransport
             var allTriangles = new List<Triangle3D>();
             int itemCount = 0;
 
+            var extractStopwatch = System.Diagnostics.Stopwatch.StartNew();
+
             foreach (var item in items)
             {
                 try
@@ -161,7 +163,8 @@ namespace NavisworksTransport
                 }
             }
 
-            LogManager.Info($"[DMesh3转换] 从 {itemCount} 个模型项共提取 {allTriangles.Count} 个三角形");
+            extractStopwatch.Stop();
+            LogManager.Info($"[DMesh3转换] 从 {itemCount} 个模型项共提取 {allTriangles.Count} 个三角形，耗时: {extractStopwatch.ElapsedMilliseconds} ms");
 
             // 转换为 DMesh3
             return Convert(allTriangles);