In order to obtain high precision end face of optical fiber connector, a lapping machine with four roses curve track for optical fiber connector end face was designed by the principle of four roses curve track transmission mechanism in theory of mechanism. By using mathematical model software (MATLAB), kinematic simulation of the mechanisms were made and the influence of the spindle speed to instantaneous velocity for any point was gained. The simulated results show that stable working condition can be obtained through choosing reasonable spindle speed.