According to the meshing mechanism of chain plate and sprocket,two kinds of plate with different meshing mechanism（inner-outer compound meshing and outer meshing） are designed. According to the six different plate connection orders,the dynamics simulation models of Hy-Vo silent chain system are built and simplified,and load and driving function are added to the models. The models are emulated and the center distance fluctuations of them are analyzed. Results show that the center distance fluctuation quantity of the system consist of only inner-outer compound meshing plate or only outer meshing plate is larger,and the center distance fluctuation quantity of the system concatenated of inner- outer compound meshing plate and outer meshing plate in a certain order is smaller.