Urban historical street promotion strategy generation method and system

The invention provides a city historical street promotion strategy generation method and system. The method comprises the following steps: establishing a map of street space annual rings based on city three-dimensional vector information; the historical building contour data and the street form data are subjected to layered drawing in a street space annual ring map in the form of an age layer, and a historical three-dimensional building model is established in combination with building historical three-dimensional data; performing annotation analysis on the street public space elements, the building interface elements and the environment interface elements in combination with the street current situation data to obtain a street current situation model; according to the street current situation model, quantitative measurement calculation is carried out on a street building interface and an environment interface, and a suitable value interval of street existing problems and quantitative parameter indexes is obt