The properties of the basic cycle of adsorption refrigeration are analyzed,based on which and in connection with the CaCl_2NH_3 adsorption refrigeration experimental system,the heat energy equation of each cycle process of the basic adsorption refrigeration is listed.Then adsorption refrigeration performance affected by different adsorption and desorption temperature is calculated under two typical status(refrigeration and air-conditioning status).The calculation result is validated by thermodynamics theory.