In order to improve the working efficiency and quality of the rice transplanter, the kinematics analysis of transplanting mechanism with the new non-circular planetary gears has been performed. The kinematics model of the transplanting mechanism was established by using the mathematical analysis method. The displacement and velocity of the mechanism were analyzed. The effects of the structural parameters on the path and relative velocity of the seedling claw were obtained. The analysis results are of theoretical significance to the design of the high-speed transplanter. 