PURPOSE: A marker sheet is provided to improve the accuracy of the marker attachment by reducing the change risk of the distance between markers. CONSTITUTION: A marker sheet(100) comprises a seat portion(110), a marker part(120), and a patterned portion(130). The seat portion can be formed in the various shapes such as the rectangular shape, the circular shape, and the triangle shape. The adhesive such as the birdlime or the adhesive may be formed on the lower part of the seat portion.본 발명의 실시예에 따른 마커 시트는 대상체에 탈착되도록 형성되는 시트부 상에 형성되는 마커부, 및 상기 시트부 상에 상기 마커부가 노출되도록 형성되는 패턴부를 포함한다.