In order to ensure that the designed cam meets the requirements of high precision and stable motion of the end position of the actuator under the high speed state of the aseptic filling machine. Based on the harmonic analysis method, the dynamic response of the design of the pre-formed cam mechanism end in different working sections is checked. Under the ADAMS environment, the dynamic simulation of the cam mechanism obtains the trajectory of the end gripper of the actuator and the kinematics and dynamic characteristic curve of the mechanism at the working speed. The results show that the clamping jaws at the end of the actuator meet the requirements of no obvious vibration response; the pre-formed cam-link combination mechanism requires that the cam and the roller keep good contact at the speed, and the angular acceleration curve of the swing arm is gentle, which provides a basis for the actual use of the cam mechanism.