diff --git a/src/hooks/usePolygon.js b/src/hooks/usePolygon.js
index f59a9b22..b66996cb 100644
--- a/src/hooks/usePolygon.js
+++ b/src/hooks/usePolygon.js
@@ -833,12 +833,17 @@ export const usePolygon = () => {
       return !(range1.max < range2.min || range2.max < range1.min)
     }
 
+    polygonLines.forEach((line) => {
+      line.need = true
+    })
+
     // innerLines와 polygonLines의 겹침을 확인하고 type 변경
     innerLines.forEach((innerLine) => {
       polygonLines.forEach((polygonLine) => {
         if (checkLineOverlap(innerLine, polygonLine)) {
           // innerLine의 type을 polygonLine의 type으로 변경
           if (polygonLine.attributes?.type && innerLine.attributes) {
+            polygonLine.need = false
             innerLine.attributes.type = polygonLine.attributes.type
           }
         }
@@ -846,6 +851,7 @@ export const usePolygon = () => {
     })
 
     const roofs = []
+    polygonLines = polygonLines.filter((line) => line.need)
 
     //polygonLines를 순회하며 innerLines와 교차하는 점을 line의 속성에 배열로 저장한다.
     polygonLines.forEach((line) => {