Abstract: The gradual exhaustion of non-renewable mineral resources must leads to a huge array of problems, such as Industrial efficiency decreasing,leading role on regional economy weakening, lack of impetus to the economic development, the intensification of social problems, and etc. The pressure on the economic transition is extremely urgent for the resource-exhausted mining cities, the core problem of which is the choice of succeeding industry.Based on the scientific analysis on the mineral resources and environment carrying capacity, mining, magnesium and aluminium industry, modern manufacturing, modern agriculture and other pillar industries in Nanchuan district, the advices presented by this paper are to prolongate the service life of mining industry as the buffer period of economic development, and to develop vigorously the grand tour as the subsequent leading industry, and to considerate comprehensively on the other industries at the same time. This paper also elaborates on the framework of urban development and functional orientation.