Abstract: The performance of microchannel plate (MCP) is very important for the resolution of image intensifier. In order to analyze the impact of MCP parameters on the resolution of image intensifier, the transverse scattering of electrons from the output surface of MCP and the elastic scattering of electrons from the non-open surface of MCP were investigated by using electron scattering theory. The results show that the resolution of image intensifier can be improved by reducing channel distance, using multilayer electrodes, increasing the depth of output electrode and increasing open area ratio.