diff --git a/src/UI/WPF/ViewModels/AnimationControlViewModel.cs b/src/UI/WPF/ViewModels/AnimationControlViewModel.cs
index ec47b88..b31533f 100644
--- a/src/UI/WPF/ViewModels/AnimationControlViewModel.cs
+++ b/src/UI/WPF/ViewModels/AnimationControlViewModel.cs
@@ -619,7 +619,12 @@ namespace NavisworksTransport.UI.WPF.ViewModels
                     // 注意：只有路径真正改变时才移动（避免初始设置null时的不必要移动）
                     if (value != null && oldRoute != value)
                     {
+                        // 保留 lift（物体姿态不变，离地高度保持不变）。
+                        // 保留 _autoAabbSx 缓存（物理尺寸与路径方向无关）。
+                        // 保留 _objectRotationCorrection（物体姿态不变）。
                         MoveAnimatedObjectToPathStart();
+                        // 用现有缓存刷新路径可视化和通行空间，不走 CalculateRotatedDimensions
+                        UpdatePassageSpaceVisualization();
                     }
                 }
             }
@@ -2224,6 +2229,11 @@ namespace NavisworksTransport.UI.WPF.ViewModels
                     {
                         _pathAnimationManager?.ApplyObjectStartPlacementRequest(placementRequest);
                         ObjectRotationCorrection = placementRequest.RotationCorrection;
+                        // 手动改角度后实测AABB缓存，与自动调整/贴地一致
+                        var manualAdapter = CoordinateSystemManager.Instance.CreateHostAdapter();
+                        var manualDoc = Autodesk.Navisworks.Api.Application.ActiveDocument;
+                        var manualItems = new ModelItemCollection { SelectedAnimatedObject };
+                        MeasureXAlignedAabbAndSetCache(SelectedAnimatedObject, manualItems, manualAdapter, manualDoc);
                     }
                     if (isAutoAdjusted)
                     {
@@ -5128,6 +5138,23 @@ namespace NavisworksTransport.UI.WPF.ViewModels
             return result;
         }
 
+        /// <summary>
+        /// 暴露实测 AABB 缓存给外部（如 PathEditingViewModel 的物体参数同步），
+        /// 避免它们走 correction 投影导致失真。
+        /// </summary>
+        public bool TryGetCachedAabbSizes(out double forward, out double side, out double up)
+        {
+            if (_autoAabbSx.HasValue)
+            {
+                forward = _autoAabbSx.Value;
+                side = _autoAabbSz.Value;
+                up = _autoAabbSy.Value;
+                return true;
+            }
+            forward = side = up = 0;
+            return false;
+        }
+
         /// <summary>
         /// 根据路径类型更新通行空间可视化
         /// 空轨和吊装路径默认打开通行空间（物体通行空间模式），地面路径不打开
diff --git a/src/UI/WPF/ViewModels/PathEditingViewModel.cs b/src/UI/WPF/ViewModels/PathEditingViewModel.cs
index 09aa62a..8e7fe0d 100644
--- a/src/UI/WPF/ViewModels/PathEditingViewModel.cs
+++ b/src/UI/WPF/ViewModels/PathEditingViewModel.cs
@@ -6364,48 +6364,64 @@ namespace NavisworksTransport.UI.WPF.ViewModels
                 }
                 else if (animationVm.SelectedAnimatedObject != null)
                 {
-                    var animationManager = NavisworksTransport.Core.Animation.PathAnimationManager.GetInstance();
-                    if ((pathType == PathType.Ground || pathType == PathType.Hoisting) &&
-                        animationManager != null &&
-                        animationManager.TryGetCurrentRouteRealObjectPlanarProjectedExtents(
-                            out double resolvedPlanarForward,
-                            out double resolvedPlanarSide,
-                            out double resolvedPlanarUp))
+                    // 优先使用 AnimationControlViewModel 的实测 AABB 缓存
+                    // （贴合地面/自动调整后设置），避免 correction 投影失真
+                    if (animationVm.TryGetCachedAabbSizes(out double cachedFwd, out double cachedSide, out double cachedUp))
                     {
-                        objectLengthModel = resolvedPlanarForward;
-                        objectWidthModel = resolvedPlanarSide;
-                        objectHeightModel = resolvedPlanarUp;
+                        objectLengthModel = cachedFwd;
+                        objectWidthModel = cachedSide;
+                        objectHeightModel = cachedUp;
                         LogManager.Debug(
-                            $"[物体参数同步] 使用真实物体平面路径最终姿态尺寸: " +
-                            $"沿路径={resolvedPlanarForward / metersToUnits:F2}m, " +
-                            $"垂直路径={resolvedPlanarSide / metersToUnits:F2}m, " +
-                            $"法线={resolvedPlanarUp / metersToUnits:F2}m");
-                    }
-                    else if (pathType == PathType.Rail &&
-                             animationManager != null &&
-                             animationManager.TryGetCurrentRouteRealObjectRailProjectedExtents(
-                                 out double resolvedRailForward,
-                                 out double resolvedRailSide,
-                                 out double resolvedRailUp))
-                    {
-                        objectLengthModel = resolvedRailForward;
-                        objectWidthModel = resolvedRailSide;
-                        objectHeightModel = resolvedRailUp;
-                        LogManager.Debug(
-                            $"[物体参数同步] 使用真实物体 Rail 最终姿态尺寸: " +
-                            $"沿路径={resolvedRailForward / metersToUnits:F2}m, " +
-                            $"垂直路径={resolvedRailSide / metersToUnits:F2}m, " +
-                            $"法线={resolvedRailUp / metersToUnits:F2}m");
+                            $"[物体参数同步] 复用贴合地面/自动调整实测AABB: " +
+                            $"沿路径={cachedFwd / metersToUnits:F2}m, " +
+                            $"垂直路径={cachedSide / metersToUnits:F2}m, " +
+                            $"法线={cachedUp / metersToUnits:F2}m");
                     }
                     else
                     {
-                        // 回退:使用选择物体时保存的原始尺寸(米)
-                        objectLengthModel = animationVm.ObjectOriginalLength * metersToUnits;
-                        objectWidthModel = animationVm.ObjectOriginalWidth * metersToUnits;
-                        objectHeightModel = animationVm.ObjectOriginalHeight * metersToUnits;
-                        LogManager.Debug(
-                            $"[物体参数同步] 回退使用选择物体保存的原始尺寸: " +
-                            $"{animationVm.ObjectOriginalLength:F2}m x {animationVm.ObjectOriginalWidth:F2}m x {animationVm.ObjectOriginalHeight:F2}m");
+                        var animationManager = NavisworksTransport.Core.Animation.PathAnimationManager.GetInstance();
+                        if ((pathType == PathType.Ground || pathType == PathType.Hoisting) &&
+                            animationManager != null &&
+                            animationManager.TryGetCurrentRouteRealObjectPlanarProjectedExtents(
+                                out double resolvedPlanarForward,
+                                out double resolvedPlanarSide,
+                                out double resolvedPlanarUp))
+                        {
+                            objectLengthModel = resolvedPlanarForward;
+                            objectWidthModel = resolvedPlanarSide;
+                            objectHeightModel = resolvedPlanarUp;
+                            LogManager.Debug(
+                                $"[物体参数同步] 使用真实物体平面路径最终姿态尺寸: " +
+                                $"沿路径={resolvedPlanarForward / metersToUnits:F2}m, " +
+                                $"垂直路径={resolvedPlanarSide / metersToUnits:F2}m, " +
+                                $"法线={resolvedPlanarUp / metersToUnits:F2}m");
+                        }
+                        else if (pathType == PathType.Rail &&
+                                 animationManager != null &&
+                                 animationManager.TryGetCurrentRouteRealObjectRailProjectedExtents(
+                                     out double resolvedRailForward,
+                                     out double resolvedRailSide,
+                                     out double resolvedRailUp))
+                        {
+                            objectLengthModel = resolvedRailForward;
+                            objectWidthModel = resolvedRailSide;
+                            objectHeightModel = resolvedRailUp;
+                            LogManager.Debug(
+                                $"[物体参数同步] 使用真实物体 Rail 最终姿态尺寸: " +
+                                $"沿路径={resolvedRailForward / metersToUnits:F2}m, " +
+                                $"垂直路径={resolvedRailSide / metersToUnits:F2}m, " +
+                                $"法线={resolvedRailUp / metersToUnits:F2}m");
+                        }
+                        else
+                        {
+                            // 回退:使用选择物体时保存的原始尺寸(米)
+                            objectLengthModel = animationVm.ObjectOriginalLength * metersToUnits;
+                            objectWidthModel = animationVm.ObjectOriginalWidth * metersToUnits;
+                            objectHeightModel = animationVm.ObjectOriginalHeight * metersToUnits;
+                            LogManager.Debug(
+                                $"[物体参数同步] 回退使用选择物体保存的原始尺寸: " +
+                                $"{animationVm.ObjectOriginalLength:F2}m x {animationVm.ObjectOriginalWidth:F2}m x {animationVm.ObjectOriginalHeight:F2}m");
+                        }
                     }
                 }
                 else