Abstract: With the development of the construction industry, prefabricated buildings have gradually replaced most of the traditional concrete and brick buildings. Prefabricated building has been developed for 40 years in China, and has mature technology and construction technology. This paper mainly introduces the characteristics of the assembled type and the technical points and difficulties in the construction of the assembled type. Summarize the advantages of prefabricated buildings, and then compare them with traditional buildings to analyze the feasibility and reliability of prefabricated buildings.