Composite phase change humidity-control material is a new type of building material developed in the recent years. Because of its unique property which could adjust the temperature and humidity of the indoor environment by absorbing or releasing the heat and moisture automatically during the phase change process

it has become a research spot in the field of building materials. The applications of composite phase change humidity-control material in buildings could maintain the comfortable indoor temperature and humidity. It not only helps to improve people's work efficiency and health

but also saves energy and reduces carbon dioxide emissions. This paper reviewed the preparative techniques

main hydrothermal properties

the theoretical model and the application effects in buildings of the composite phase change humidity-control material. Then it points out the main issues needed to be addressed in the future development. It is believed that this paper could propose new ideas for the researchers working in the field of building materials in China.