"Let the residents see the mountains, see the water, and remember the homesickness", which is the requirement of the new urbanization with people as the core, and also poked at the soft ribs of some transformation projects. Especially in the process of the renovation of some existing buildings, although the appearance is completely new, many things that once made people nostalgic are gone. People have more or less such concerns: will rapid, large-scale urbanization make "homesickness" nowhere to be placed? In order to retain nostalgia in the process of urbanization and prevent "homesickness" from becoming "rural pain", an important aspect is to retain, care for and activate the memory of the city and the memory of the building. In the process of urban renewal, architects have been trying to find a balance between adapting old buildings to new functional needs and retaining some of their original features and cultural charm.