PURPOSE: An extension of a rear door of a multifunctional direct seeder and a liner thereof is provided to improve ventilation by seeding in a line because of a drawn line which enables a driver to drive straightly along the line while the driver looking at the line and a side bar, thereby being capable of improving yield. CONSTITUTION: An extension of a rear door of a multifunctional direct seeder and a liner thereof comprises a stopper plate(1) which is extended from a rotary stopper plate(4). On the body of a rotary, a liner is mounted. A side bar is mounted on a cover on the front body of a tractor.다목적 볍씨 직파기인 로차리의 뒷문짝 확대와 일직선으로 직파가 되도록하는 미리 금 긋기 장치이다.
