Abstract: In order to realize the automatic transportation of wood at China’s trade ports, this paper designs a special mechanical equipment for timber transfer. The parametric module of Creo5.0 is used to model the various mechanisms and parts of the timber transfer equipment, including the main frame structure of the gantry frame, clamping mechanism and the chassis of the carrier train（the gauge is 1 435 mm and 1 520 mm）. According to the different motion modes, different connection modes are used to assemble each mechanism. An observation point is added to the inner side of the clamp end of the clamping mechanism, and the dynamic simulation analysis of the assembly model is carried out. The simulation results show that the various mechanisms of the designed timber transfer equipment can coordinate work, and solve the problems of assembly mode and motion rationality between the various parts; optimize the three-dimensional model of the timber transfer equipment, in order to improve the efficiency of timber transfer, make the design scheme more perfect, and lay a foundation for the follow-up research and optimization of timber transfer equipment.