Abstract:At present, using phase change materials to store and use clean energy has become one of the important ways to design energy-saving buildings, so the research and application of phase change materials for buildings was summarized. Firstly, the requirements, common types, preparation methods and selection principles of phase change materials used in architecture were introduced. Then, two main application forms of phase change materials were summarized in detail, which were composite with traditional building materials and combined with building facilities, and the existing typical application methods were expounded through cases. Finally, the challenges and prospects of the application of phase change materials in architecture were discussed. It can provide reference for the application and research of phase change materials in architecture.