Firstly, we discussed the general design principle of an ecoplaner qualitatively. Then, we applied the linear modification approximation theorythe method of NewtonRaphson to perform the kinematics analysis on the hanging system of the scarification mechanism of the ecoplaner and discussed its pit shape. Finally, we carried out the numeral simulation on the pit shape and the ElastoDynamics with the business software-MATLAB.The results were helpful for the designer to have more distinct knowledge about the mechanism motion property and the structure property of the developed product prototype before formal production, and therefore raising the successful rate of the product development.