"Pátio" and "Beco" are the smallest existing roads in Macau. In the past, many Macau residents lived in "Pátio" and "Beco", and there was close contact and connection between neighbors. The Historic Centre of Macau is the 31st World Cultural Heritage Site in China. In the buffer zone of the historic district, there are many enclosures built by the Chinese in the past. As the street with the lowest level and the smallest scale, it has a certain flexibility and reflects the traditional Chinese social life and culture at that time. This research focuses on the non-legal protection of historical buildings in the buffer zone of Macau's world cultural heritage. Its style, artistic value, and future revitalization are very worthy of research.