Aiming at the problems such as the easy wear of the cam mechanism in the traditional cam manipulator,the lack of flexibility in the output action and the single trajectory of the movement,a new design scheme for the electronic cam picking manipulator is proposed. Meantime,the software and hardware platform of the electronic cam control system is built. Among them,taking the polynomial motion law of the output cam mechanism as an example,the relationship between the output pulse number of the servo system and the movement law of the follower is deduced. Using PMsoft software to program and output the electronic cam curve,the curve conforms to the expected polynomial motion law. According to different production requirements,the system can change the output motion curve by changing the parameters setting of the electronic cam. It provides a design method and an example for the flexibility of the manipulator output motion process and the diversification of the trajectory.