diff --git a/src/Core/PathDatabase.cs b/src/Core/PathDatabase.cs
index ff4e47e..5d7c028 100644
--- a/src/Core/PathDatabase.cs
+++ b/src/Core/PathDatabase.cs
@@ -125,7 +125,7 @@ namespace NavisworksTransport
                 )
             ");
 
-            // 5. 路径边表（新增）
+            // 5. 路径边表（新增SequenceNumber字段）
             ExecuteNonQuery(@"
                 CREATE TABLE IF NOT EXISTS PathEdges (
                     Id TEXT PRIMARY KEY,
@@ -134,6 +134,7 @@ namespace NavisworksTransport
                     EndPointId TEXT NOT NULL,
                     SegmentType INTEGER NOT NULL,
                     PhysicalLength REAL NOT NULL,
+                    SequenceNumber INTEGER NOT NULL,
                     Ts_X REAL,
                     Ts_Y REAL,
                     Ts_Z REAL,
@@ -230,9 +231,9 @@ namespace NavisworksTransport
                     // 保存路径边
                     if (route.Edges != null && route.Edges.Count > 0)
                     {
-                        foreach (var edge in route.Edges)
+                        for (int i = 0; i < route.Edges.Count; i++)
                         {
-                            SavePathEdge(route.Id, edge);
+                            SavePathEdge(route.Id, route.Edges[i], i);
                         }
 
                         LogManager.Info($"保存路径: {route.Name}，包含 {route.Edges.Count} 个路径边");
@@ -569,15 +570,15 @@ namespace NavisworksTransport
         /// <summary>
         /// 保存路径边
         /// </summary>
-        private void SavePathEdge(string routeId, PathEdge edge)
+        private void SavePathEdge(string routeId, PathEdge edge, int sequenceNumber)
         {
             var sql = @"
                 INSERT INTO PathEdges
-                (Id, RouteId, StartPointId, EndPointId, SegmentType, PhysicalLength,
+                (Id, RouteId, StartPointId, EndPointId, SegmentType, PhysicalLength, SequenceNumber,
                  Ts_X, Ts_Y, Ts_Z, Te_X, Te_Y, Te_Z,
                  ArcCenter_X, ArcCenter_Y, ArcCenter_Z,
                  RequestedRadius, ActualRadius, DeflectionAngle, ArcLength)
-                VALUES (@id, @routeId, @startId, @endId, @segType, @length,
+                VALUES (@id, @routeId, @startId, @endId, @segType, @length, @seqNum,
                         @tsx, @tsy, @tsz, @tex, @tey, @tez,
                         @acx, @acy, @acz,
                         @reqR, @actR, @angle, @arcLen)
@@ -591,6 +592,7 @@ namespace NavisworksTransport
                 cmd.Parameters.AddWithValue("@endId", edge.EndPointId ?? "");
                 cmd.Parameters.AddWithValue("@segType", (int)edge.SegmentType);
                 cmd.Parameters.AddWithValue("@length", edge.PhysicalLength);
+                cmd.Parameters.AddWithValue("@seqNum", sequenceNumber);
 
                 // 直线段：保存起止点坐标
                 if (edge.SegmentType == PathSegmentType.Straight && edge.SampledPoints != null && edge.SampledPoints.Count >= 2)
@@ -679,7 +681,7 @@ namespace NavisworksTransport
         /// </summary>
         private void LoadPathEdges(PathRoute route)
         {
-            var sql = "SELECT * FROM PathEdges WHERE RouteId = @routeId ORDER BY Id";
+            var sql = "SELECT * FROM PathEdges WHERE RouteId = @routeId ORDER BY SequenceNumber";
 
             using (var cmd = new SQLiteCommand(sql, _connection))
             {