With In-depth research of protection and reuse of the historical buildings, the value of modern historic buildings which developed in a particular community of china has been gradually recognition. Dalian is a typical modern city in china with rich resources of modern architecture. In this thesis,taking the modern historic buildings built from 1894 to 1949 as range of study, and taking modern public building in Zhongshan Square and circumjacent as the subjects, then carry on an investigation into their situ...