diff --git a/src/Add-on/DrawBoard/DrawBoardTool.ts b/src/Add-on/DrawBoard/DrawBoardTool.ts
index b95436d87..a643307de 100644
--- a/src/Add-on/DrawBoard/DrawBoardTool.ts
+++ b/src/Add-on/DrawBoard/DrawBoardTool.ts
@@ -93,13 +93,18 @@ export abstract class DrawBoardTool implements Command
                         let ray: Ray;
                         //构造射线,取和射线相交的空间
                         if (spaceData.Intersection.object)
-                            ray = new Ray(spaceData.Intersection.point, spaceData.Intersection.face.normal);
+                        {
+                            let pick = spaceData.Intersection;
+                            let normal = pick.face.normal.clone().transformDirection(pick.object.matrix);
+                            ray = new Ray(spaceData.Intersection.point, normal);
+                        }
                         else
                             ray = app.m_Viewer.GenerateRaycaster(vcs).ray;
+
+                        ray.applyMatrix4(new Matrix4().getInverse(mat));
                         arrayRemoveIf(spaces, box =>
                         {
-                            let b = box.clone().applyMatrix4(mat);
-                            return ray.intersectBox(b, new Vector3()) === null;
+                            return ray.intersectBox(box, new Vector3()) === null;
                         });
                     }
                     if (spaces.length > 0)
diff --git a/src/Geometry/SpaceParse/PointPickSpaceParse.ts b/src/Geometry/SpaceParse/PointPickSpaceParse.ts
index 2264d3662..4ea2ff5af 100644
--- a/src/Geometry/SpaceParse/PointPickSpaceParse.ts
+++ b/src/Geometry/SpaceParse/PointPickSpaceParse.ts
@@ -23,7 +23,7 @@ export function PointPickSpaceParse(ptVcs: Vector3, view: Viewer, objectCol: Obj
         let br = pick.object.userData as Board;
 
         //如果pick的面不是板件的正面或者反面,那么放弃操作.
-        let pickNormal = pick.face.normal.clone().applyMatrix4(new Matrix4().extractRotation(pick.object.matrix));
+        let pickNormal = pick.face.normal.clone().transformDirection(pick.object.matrix);
         if (!isParallelTo(pickNormal, br.Normal))
             return { BoardCol: selectBoardCol, Intersection: pick };