Abstract: Capillary plane radiation air-conditioning system is a new air-conditioning system that has broken the traditional air-conditioning system.Based on a detailed study of capillary plane radiation air-conditioning principles,characteristics and the basic structure,this paper pointed out several defects of the capillary plane radiation air-conditioning system such as the condensation phenomenon,the defect of control system ect.In addition,some reasonable design suggestions and future research directions were given in this article.