In this paper, the D-H modeling method is used to build the kinematic model of the Dobot, and the forward kinematics solution is analyzed. The method of quintic polynomial interpolation is used to plan the trajectory of the Dobot. The simulation analysis is carried out in the MATLAB environment. The results show that the positions before and after the simulation are consistent with the theoretical analysis, which shows that this method It can meet the given requirements and provide a theoretical basis for the future research and development of Dobot.