diff --git a/src/hooks/floorPlan/estimate/useEstimateController.js b/src/hooks/floorPlan/estimate/useEstimateController.js
index f5631825..c797f5fc 100644
--- a/src/hooks/floorPlan/estimate/useEstimateController.js
+++ b/src/hooks/floorPlan/estimate/useEstimateController.js
@@ -3,7 +3,7 @@ import { useContext, useEffect, useReducer, useState } from 'react'
 import { useRecoilState, useRecoilValue } from 'recoil'
 import { globalLocaleStore } from '@/store/localeAtom'
 import { estimateState, floorPlanObjectState } from '@/store/floorPlanObjectAtom'
-import { isObjectNotEmpty } from '@/util/common-utils'
+import { isObjectNotEmpty, isNotEmptyArray } from '@/util/common-utils'
 import { SessionContext } from '@/app/SessionProvider'
 import { useMessage } from '@/hooks/useMessage'
 import { useRouter } from 'next/navigation'
@@ -202,7 +202,7 @@ export const useEstimateController = (planNo) => {
     if (flag && fileFlg && itemFlg) {
       //1. 첨부파일 저장시작
       const formData = new FormData()
-      if (estimateData.tempFileList.length > 1) {
+      if (isNotEmptyArray(estimateData.tempFileList) > 1) {
         estimateData.tempFileList.forEach((file) => {
           formData.append('files', file)
         })