diff --git a/__test__/Booloperate/__snapshots__/bool3.test.ts.snap b/__test__/Booloperate/__snapshots__/bool3.test.ts.snap
index 6c3c1013a..5073044de 100644
--- a/__test__/Booloperate/__snapshots__/bool3.test.ts.snap
+++ b/__test__/Booloperate/__snapshots__/bool3.test.ts.snap
@@ -1,5 +1,5 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`布尔_误差共线_误差交点 1`] = `739590.0297771678`;
+exports[`布尔_误差共线_误差交点 1`] = `739590.0293744556`;
 
-exports[`布尔_误差共线_误差交点 2`] = `739582.752529773`;
+exports[`布尔_误差共线_误差交点 2`] = `739582.752084238`;
diff --git a/__test__/FeedingToolPath/__snapshots__/FeedingToolPath.test.ts.snap b/__test__/FeedingToolPath/__snapshots__/FeedingToolPath.test.ts.snap
index 726ef5ef8..12792be4b 100644
--- a/__test__/FeedingToolPath/__snapshots__/FeedingToolPath.test.ts.snap
+++ b/__test__/FeedingToolPath/__snapshots__/FeedingToolPath.test.ts.snap
@@ -204,7 +204,7 @@ exports[`极限刀半径#I11UDE: 曲线长度 3`] = `10.71238898038469`;
 
 exports[`极限刀半径#I11UDE: 曲线长度 4`] = `10.71238898038469`;
 
-exports[`极限刀半径#I11UDE: 曲线长度 5`] = `10.71238898038521`;
+exports[`极限刀半径#I11UDE: 曲线长度 5`] = `10.71238898038469`;
 
 exports[`极限刀半径#I11UDE: 曲线长度 6`] = `10.712388980384734`;
 
@@ -442,7 +442,7 @@ exports[`造型的外框和内框厚度等于刀直径: 曲线长度 2`] = `1468
 
 exports[`造型的外框和内框厚度等于刀直径: 曲线长度 3`] = `10.71238898038469`;
 
-exports[`造型的外框和内框厚度等于刀直径: 曲线长度 4`] = `10.712388980384869`;
+exports[`造型的外框和内框厚度等于刀直径: 曲线长度 4`] = `10.71238898038469`;
 
 exports[`造型的外框和内框厚度等于刀直径: 曲线长度 5`] = `10.71238898038469`;
 
diff --git a/src/GraphicsSystem/IntersectWith.ts b/src/GraphicsSystem/IntersectWith.ts
index 0318dc399..dc764bb51 100644
--- a/src/GraphicsSystem/IntersectWith.ts
+++ b/src/GraphicsSystem/IntersectWith.ts
@@ -65,11 +65,11 @@ function CheckPointOnCurve(intRes: IntersectResult[], c1: Curve, c2: Curve, extT
     return intRes.filter(r =>
     {
         if (!(extType & IntersectOption.ExtendThis))
-            if (!c1.PtOnCurve3(r.pt, tolerance))
+            if (!c1.ParamOnCurve(r.thisParam, tolerance))
                 return false;
 
         if (!(extType & IntersectOption.ExtendArg))
-            if (!c2.PtOnCurve3(r.pt, tolerance))
+            if (!c2.ParamOnCurve(r.argParam, tolerance))
                 return false;
         return true;
     });
@@ -428,14 +428,12 @@ export function IntersectPolylineAndCurve(pl: Polyline, cu: Curve, extType: Inte
             {
                 return {
                     pt: r.pt,
-                    thisParam: pl.GetParamAtPoint(r.pt),
-                    argParam: cu.GetParamAtPoint(r.pt),
+                    thisParam: i + r.thisParam,
+                    argParam: j + r.argParam,
                 };
             }));
         }
     }
-    intRes.sort((r1, r2) => comparePoint("xyz")(r1.pt, r2.pt));
-    arrayRemoveDuplicateBySort(intRes, (r1, r2) => equalv3(r1.pt, r2.pt));
     return intRes;
 }