Rice transplanter is a kind of agricultural machinery that can implant rice seedlings into rice fields. When planting, firstly take out several rice seedlings from the Seedbed and implant them into the soil, in order to keep the angle between the Seedbed and the ground as a right angle, when moving the front end of the mechanical claw, The Oval action curve must be adopted. The action is done by the planetary mechanism of rotating or deformation gear, and the forward engine can drive these action machines at the same time. The rice transplanter must have antiskid wheels and float design when moving on the soil. If the seedlings are inserted into pieces, the rice seedlings are taken out from the specific seedling box and then planted mechanically.