In order to solve the problem that the laser tracker cannot satisfy the requirement of continuous automatic measurement at present, a scheme of using manipulator to grab the target ball is proposed. By establishing the system model and transforming the unified coordinate system, the position and attitude of the end of the manipulator can reach the position and attitude of the measured target point, and the continuous automatic measurement made by a laser tracker can be realized by using the trajectory planning of the manipulator. Finally, the feasibility of the scheme is verified by Matlaba simulation.