Abstract: The working principle of microchannel plate(MCP) is described briefly.The main performance characteristics and its working parameters are introduced,including thickness,open area ratio,gain uniformity,dynamic range,working life and resolution etc.The relationship between these performances characteristics and parameters is presented.On the basis of the presentation mentioned above,a specific relationship and factors,which affect parameters,is analysed.The further understanding and processing of the relationship between MCP's main characteristic performances and parameters are more significant for the MCP's production and application