diff --git a/__test__/Board/Mirror.test.ts b/__test__/Board/Mirror.test.ts
index 40399d861..2b77eda03 100644
--- a/__test__/Board/Mirror.test.ts
+++ b/__test__/Board/Mirror.test.ts
@@ -1,6 +1,7 @@
 import { Vector3 } from "three";
 import { CADFiler } from "../../src/api";
 import { MakeMirrorMtx } from "../../src/Common/Matrix4Utils";
+import { XAxis } from "../../src/Geometry/GeUtils";
 import { LoadBoardsFromFileData } from "../Utils/LoadEntity.util";
 
 test('板件镜像', () =>
@@ -28,3 +29,21 @@ test('板镜像后板边数据错误', () =>
     f.WriteObject(br);
     expect(f.Data).toMatchSnapshot();
 });
+
+
+test('板件镜像后封边错误(异形带圆弧)', () =>
+{
+    //错误原因:    ...-直线-起点-圆弧-...
+    //因为起点夹在圆弧中,所以如果只是简单的翻转(reverse)封边,则会造成第一段封边错误的问题
+
+    let d =
+        { "file": [1, "Board", 8, 2, 110, false, 1, 2, 0, [0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1, 0, 466.9546629560559, 50.4951757024906, 1182, 1], 0, 0, true, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 466.9546629560559, 50.4951757024906, 1182, 1], 0, 3, 300.00000000000006, 532, 18, false, "Polyline", 8, 2, 0, false, 0, 7, 0, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1], 0, 0, true, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1], 0, 2, 5, [200, 0], 0, [532, 0], 0, [532, 300], 0, [0, 300], 0, [0, 200.00000000000003], 0.41421356237309503, true, 0, 3, 0, 0, 0, 0, 0, 10, 0, "顶板", "F01", "G01", "", "", "", 1, 0, "三合一", 2, 3, 1.2, 0.6, 0.6, "0.6", "1.2", "1.2", "0.6", "", "", "", 5, "三合一", "三合一", "三合一", "三合一", "三合一", true, true, 0, 0, 0, 0, 0, 0, 0, 0, true, 0, 0], "basePt": { "x": 166.95466295605587, "y": 50.4951757024906, "z": 1182 }, "ucs": [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1] };
+
+    let br = LoadBoardsFromFileData(d)[0];
+
+    let mirror = MakeMirrorMtx(XAxis);
+
+    br.ApplyMatrix(mirror);
+
+    expect(br.BoardProcessOption.highSealed).toMatchSnapshot();
+});
diff --git a/__test__/Board/__snapshots__/Mirror.test.ts.snap b/__test__/Board/__snapshots__/Mirror.test.ts.snap
index 335bff186..97f0684df 100644
--- a/__test__/Board/__snapshots__/Mirror.test.ts.snap
+++ b/__test__/Board/__snapshots__/Mirror.test.ts.snap
@@ -178,6 +178,20 @@ Array [
 ]
 `;
 
+exports[`板件镜像后封边错误(异形带圆弧) 1`] = `
+Array [
+  Object {
+    "size": 1.2,
+  },
+  Object {
+    "size": 0.6,
+  },
+  Object {
+    "size": 0.6,
+  },
+]
+`;
+
 exports[`板镜像后板边数据错误 1`] = `
 Array [
   "Board",
diff --git a/src/DatabaseServices/Entity/Board.ts b/src/DatabaseServices/Entity/Board.ts
index e25c0c77e..4d59c5380 100644
--- a/src/DatabaseServices/Entity/Board.ts
+++ b/src/DatabaseServices/Entity/Board.ts
@@ -938,7 +938,9 @@ export class Board extends ExtrudeSolid
             && this.BoardProcessOption[EBoardKeyList.SpliteThickness]
         );
 
-        let highSeals = GetBoardHighSeal(this, GetBoardSealingCurves(this));
+        let highSealsCurves = GetBoardSealingCurves(this);
+        let highSeals = GetBoardHighSeal(this, highSealsCurves);
+        let isStartSealToBack = !equalv3(highSealsCurves[0].StartPoint, this.contourCurve.StartPoint, 1e-4);//第一段封边往后搜索了
 
         super.ApplyMirrorMatrix(m);
 
@@ -946,7 +948,10 @@ export class Board extends ExtrudeSolid
         {
             this.contourCurve.Reverse();
             highSeals.reverse();
-            this.BoardProcessOption.highSealed?.reverse();
+
+            if (isStartSealToBack)//如果第一段封边往后搜索了,那么封边在镜像后 第一段封边保持不变
+                highSeals.unshift(highSeals.pop());
+
             this.BoardProcessOption.highDrill?.reverse();
 
             if (hasSplitSize)
diff --git a/src/GraphicsSystem/CalcEdgeSealing.ts b/src/GraphicsSystem/CalcEdgeSealing.ts
index 52de2effe..f6d3e7763 100644
--- a/src/GraphicsSystem/CalcEdgeSealing.ts
+++ b/src/GraphicsSystem/CalcEdgeSealing.ts
@@ -22,7 +22,7 @@ import { ParseEdgeSealDir } from "./ParseEdgeSealDir";
  */
 export function ParagraphCulist(cus: Curve[])
 {
-    let newCulist: Curve[][] = [];
+    let newCulist: (Curve[])[] = [];
     let usedCu: WeakSet<Curve> = new WeakSet();
 
     //归类曲线,返回归类是否成功
@@ -81,7 +81,8 @@ export function ParagraphCulist(cus: Curve[])
         usedCu.add(cu);
         return true;
     };
-    let caclCus = cus.slice().filter(c => !equaln(c.Length, 0));
+
+    let caclCus = cus.filter(c => !equaln(c.Length, 0));
 
     while (caclCus.length > 0)
     {