Abstract: This study takes the rooftop photovoltaic power generation system of a villa in Shuangliu District, Chengdu City, Sichuan Province as the research object, combined with its geographical location and solar energy resources, uses PVsyst software for preliminary design, obtains theoretical power generation data, and explores the social and economic benefits of similar distributed photovoltaic power generation projects in Sichuan region combined with the actual investment situation of the project. The results show that the photovoltaic building integration project in this area has better social and economic benefits, which is worthy of promotion and development.