Abstract: The rapid consumption of resources and pollution of heavy metals is a major bottleneck problem influencing the sustainable development of the nonferrous metal mine enterprises in China.The technical personnel from Tongkeng Mine carried out a detailed investigation on the crushing pillar,caving zone and residual ore resources area underground,and set up the digital models of the caving zones and goafs in the ore body.According to the mining technical difficulties,the resources reserves categories was re-divided. Through the cooperation with some scientific research academies,some research and development of mining technology was carried out,and the resources reserves difficult to use in the past was liquidized,and ore maximally in the difficult mining section such as crushing pillar was recovered.At the same time,through strengthening the exploration of deep edge,there is a good prospecting potential on the basis of the current engineering verification.The practice show: "broaden sources of income and reduce expenditure" is a strategic decisions of promoting the economic benefits growth and reducing the environmental pollution for the mining enterprise.