System of villagers autonomy is one of the basic political systems in China and one of those systems ensuring that the people are the masters of the country. Northwest minorities generally live in the remote northwestern China where economy and education are relatively underdeveloped compared with those in central and eastern China and civil authority has great influence on rural grass-roots democracy as well as social autonomy there, which causes difficulties to the development of rural democracy and social autonomy. Assisting northwest minority regions in overcoming the difficulties of developing grass-roots democracy and social autonomy, carrying out effective measures to properly guide the development and influence of civil authority and finally achieving the construction of new socialist countryside have great significance in ensuring that people there are the masters of their country.