The present invention relates to a seed replanting machine conveniently replanting seeds at a part where the germination of seeds does not occur or seeds are eaten by birds after planting seeds by using a planting machine or planting seeds independently. The present invention: has a replanting main body of a square tube protruding from the side surface of a body handle at a predetermined length； installs a push rod handle of which one part protrudes from the upper part of the replanting main body in the same direction as the body handle while combined with the replanting main body through a hinge in the front side of the body handle； forms a sliding plate at the rear end of the push rod to protrude by being inserted into a sliding groove formed in the upper part of the replanting main body while installing the push rod inside the replanting main body； connects the sliding plate to the upper part of the body handle through a return spring； pushes the sliding plate forwards by the upper side of the push rod handle； has a seed injection hopper installed in the side surface of the replanting main body to inject seeds into the replanting main body； and opens and closes the front end of the replanting main body with an opening and closing plate, which rotates, while the front end of the replanting main body is formed to be inclined, wherein the opening and closing plate blocks the front side of the replanting main with restoring force of a spring by being combined with the replanting main body through the spring, and the opening and closing plate is formed to open the front side of the replanting body when the push rod moves forwards.본 발명은 식재장치를 이용하여 씨앗의 식재가 이루어지거나 단독으로 씨앗을 식재 한 후 씨앗의 발아가 이루어지지 않거나 새들이 먹이로 사라진 부분에 간편하게 씨앗의 보식(補植)이 이루어지도록 하는 씨앗 보식기에 관한 것이다.본 발명은 몸체 손잡이의 측면으로 일정 길이가 돌출되는 사각관의 보식기 몸체를 구비하고, 상기 몸체 손잡이의 전방으로 보식기 몸체에 힌지 결합되는 한편 보식기 몸체의 상부로 일부가 돌출되는 밀음봉 손잡이를 몸체 손잡이와 같은 방향으로 설치하고, 상기 보식기 몸체의 내부에는 밀음봉을 설치하되 상기 밀음봉의 후단에는 보식기 몸체의 상부에 형성된 슬라이딩 홈에 끼워져 돌출되는 슬라이딩판을 형
