The microsphere pushing and pulling system is the auxiliary logging equipment to assist the microsphere focusing logging tool to complete the down hole logging task. The accuracy of its movement is closely related to the accuracy of the logging data. The mathematical analysis model of the push system of the microsphere focusing logging tool was established by using matrix analysis method in order to improve its motion performance, and its virtual prototype was established. Kinematics analysis was carried out for its multibar mechanism. Studies and analysis were carried out for the motion law of the high pair mechanism of two column pin chute in the pushing system and the kinematic curve of the output member of the mechanism against the pole plate. The motion parameters of each member of the push system were obtained, which truly reflected the motion of each member. It provides the basis for the optimization design of the structural parameters of the push system and improves the design efficiency for the subsequent design of the slot pin pair and the push system.