diff --git a/src/hooks/usePolygon.js b/src/hooks/usePolygon.js
index 7b14b906..62130acd 100644
--- a/src/hooks/usePolygon.js
+++ b/src/hooks/usePolygon.js
@@ -861,14 +861,13 @@ export const usePolygon = () => {
         /*innerLine.set({ stroke: originInnerStroke })
         canvas.renderAll()*/
       })
-      /*line.set({ intersections })
+      line.set({ intersections })
 
-      line.set({ stroke: originStroke })
+      /*line.set({ stroke: originStroke })
       canvas.renderAll()*/
     })
 
     const divideLines = polygonLines.filter((line) => line.intersections?.length > 0)
-
     let newLines = []
 
     divideLines.forEach((line) => {
diff --git a/src/util/canvas-util.js b/src/util/canvas-util.js
index 6eef894e..0f0b69dc 100644
--- a/src/util/canvas-util.js
+++ b/src/util/canvas-util.js
@@ -533,11 +533,11 @@ export function isPointOnLine({ x1, y1, x2, y2 }, { x, y }, epsilon = 2) {
   return result <= 10*!*/
   // 직선 방정식 만족 여부 확인
   const crossProduct = (y - y1) * (x2 - x1) - (x - x1) * (y2 - y1)
-  if (Math.abs(crossProduct) > 500) return false // 작은 오차 허용
+  if (Math.abs(crossProduct) > 1000) return false // 작은 오차 허용
 
   // 점이 선분의 범위 내에 있는지 확인
-  const withinXRange = Math.min(x1, x2) <= x && x <= Math.max(x1, x2)
-  const withinYRange = Math.min(y1, y2) <= y && y <= Math.max(y1, y2)
+  const withinXRange = Math.abs(Math.min(x1, x2) - x) <= 2 || 2 <= Math.abs(Math.max(x1, x2) - x)
+  const withinYRange = Math.abs(Math.min(y1, y2) - y) <= 2 || 2 <= Math.abs(Math.max(y1, y2) - y)
 
   return withinXRange && withinYRange
 }