The present invention relates to a mulching pin head for fixing a vinyl greenhouse, wherein, when a mulching pin (21) obtained by bending a metal pole in an inverted U shape is driven into the ground while passing through a vinyl film (20) in order to fix the end of the vinyl film (20) of the vinyl greenhouse, which is used to retain heat and moisture and prevent disease and insect damage, to the ground, the mulching pin head can prevent the damage of the vinyl film (20), which is caused by the tearing between the mulching pin (21) and an inserted portion of the vinyl film (20), and simply drive the mulching pin (21) into the ground or conveniently pull the mulching pin (21) from the ground, in cases where the vinyl film (20) is removed or the vinyl film (20) flutters by external force such as wind. In the mulching pin head of the present invention, a penetration hole (12) through which a vertical pole (22) of the mulching pin (21) is formed in a support substrate (11), which is formed to push and fix the end of the vinyl film (20). A handle (17) connected to supports (13) is formed at an upper end. Catching protrusions (15) are, respectively, formed to face each other between the support substrate (11) and the handle (17). Here, the catching protrusions (15) are spaced apart from each other such that a horizontal pole (23) of the mulching pin (21) compulsorily passes through between the catching protrusions (15). The supports (13) formed between the support plate (11) and the handle (17) are located such that the horizontal pole (23) of the mulching pin (21) compulsorily passing through between the catching protrusions (15) does not deviate from between the catching protrusions (15) and the supports (13).COPYRIGHT KIPO 2015본 발명은 보온, 보습 및 병충해 방지를 위하여 사용하는 비닐하우스의 비닐막(20) 끝자락을 지면에 고정하기 위하여, 금속봉을 "∩" 형태로 구부린 멀칭핀(21)(mulching pin)을 비닐막(20)을 관통하여 지면에 박아 넣어 사용함에 있어,비닐막(20)을 제거하거나, 바람이 불어 비닐막(20)이 나부끼는 등의 외력이 발생할 때, 멀칭핀(21)과 끼워진 부분이 찢겨 비닐막(20)이 손상되는 것을 방지하고, 멀칭핀(21)을 지면에 간
