As a provincial level historic city, Songpan County in Sichuan Province has a history of more than two thousand years. Locating in the border of three provinces, Songpan was inhabited by multiple ethnic groups. The leading culture here has experienced the baptism and influence of various ethnic cultures such as the Diqiang culture, Mongolian culture, and Tubo culture, and it was not until the Tang Dynasty that the harmonious scene of the coexistence of various ethnic cultures began to be dominated by the Central Plains culture. This research took the Ma house in Songzhou ancient city in Songpan County as the object, which is a representative of local Hui people’s traditional dwellings with a history of three hundred years. Many factors have led to unsystematic protection and renovation to it, and the traces of time was superimposed on it. Therefore, starting from the authenticity degrees of historic building, this paper identified and analysed the timeliness value and spatial value of the Ma house by combining the full information cycle of historic building, which provided a new method and more rational view for the research of historic dwellings.