The old streets of the city are the recorders of urban history and the witnesses of urban development. However, in the process of rapid social development, old streets have become a neglected factor, accumulating many problems at multiple levels. They are subject to the early planning idea, economy, construction and other conditions of the restriction. Residential constructions often only cater to the social status quo and people's living needs at that time, which is inconsistent with the rapid development of modern city construction. A lot of attention is paid to the physical level construction, neglecting the social level problems. This may cause the loss of regional spirit and culture characteristics.