Taking the renovation project of vernacular dwellings in Chadong Village in Nanlang Town, Zhongshan City for example, historical background of historical and cultural tourism and concrete situation of the project were combined to elaborate the principles, methods and implementation measures of vernacular dwellings in such projects. Renovation projects of vernacular dwellings could protect historical buildings, coordinate regional historical images, and improve the quality of history and culture, so it could be widely applied in historical and cultural tourism of villages and towns.