diff --git a/src/DatabaseServices/Entity/Entity.ts b/src/DatabaseServices/Entity/Entity.ts
index f3e877366..a13b89249 100644
--- a/src/DatabaseServices/Entity/Entity.ts
+++ b/src/DatabaseServices/Entity/Entity.ts
@@ -110,6 +110,14 @@ export class Entity extends CADObject
         this.Update(UpdateDraw.Matrix);
     }
 
+    /** Z轴归0 */
+    Z0()
+    {
+        this.WriteAllObjectRecord();
+        this._Matrix.elements[14] = 0;
+        this.Update(UpdateDraw.Matrix);
+    }
+
     get OCSInv(): Matrix4
     {
         return new Matrix4().getInverse(this._Matrix);
diff --git a/src/DatabaseServices/Shape.ts b/src/DatabaseServices/Shape.ts
index 519323075..3a8fedee1 100644
--- a/src/DatabaseServices/Shape.ts
+++ b/src/DatabaseServices/Shape.ts
@@ -17,6 +17,7 @@ export class Shape
         this.m_Outline = out || new Contour();
         hols && this.m_Holes.push(...hols);
     }
+
     get Outline()
     {
         return this.m_Outline;
@@ -50,6 +51,14 @@ export class Shape
         this.UpdateShape();
         return this.m_Shape;
     }
+
+    Z0()
+    {
+        this.m_Outline.Curve.Z0();
+        for (let h of this.m_Holes)
+            h.Curve.Z0();
+    }
+
     ApplyMatrix(m: Matrix4)
     {
         this.m_Outline.Curve.ApplyMatrix(m);
diff --git a/src/GraphicsSystem/ToolPath/FeedingToolPath.ts b/src/GraphicsSystem/ToolPath/FeedingToolPath.ts
index 1f0b39894..64616d904 100644
--- a/src/GraphicsSystem/ToolPath/FeedingToolPath.ts
+++ b/src/GraphicsSystem/ToolPath/FeedingToolPath.ts
@@ -10,6 +10,7 @@ import { BoolOpeartionType } from "../BoolOperateUtils";
 import { OptimizeToolPath } from "./OptimizeToolPath";
 import { equalCurve, IsRect } from "../../Common/CurveUtils";
 import { Vector3 } from "three";
+import { MoveMatrix } from "../../Geometry/GeUtils";
 
 /**
  *计算走刀工具类
@@ -179,7 +180,7 @@ export class FeedingToolPath extends Singleton
         if (!knifeRadius) knifeRadius = 3;
 
         shape = shape.Clone();
-
+        shape.Z0();
         this.GrooveAddLen(shape, addLen);
 
         if (thickness >= brThickness)