On the basis of main contents of social construction and key points of construction, this paper analyzes features of conditions of northwest Sichuan plateau pastoral area. The social construction at current stage mainly includes social cause in narrow sense, and social management at meso-level. The northwest Sichuan plateau pastoral area is faced with the best policy and development opportunity. However, there are still many weak aspects. Firstly, social structure is not coordinated with economic structure. Secondly, social construction ability of grass-roots government is weak. Thirdly, the ability to respond to public demands is low. Fourthly, there is a big gap in availability of basic public service. Finally, it presents path selection for social construction of northwest Sichuan plateau pastoral area: strengthen social construction ability of grass-roots government; promote social construction with livelihood projects as key projects; boost social construction taking advantage of ecological construction; develop basic public service with the aid of external forces; intensify evaluation system for supervision of social construction works.