In this paper, based on the discussion on the environment problems caused by mining coal such as the destruction of land, pollutions of the water resources and atmosphere, combining with the forward development of mining techniques, ranging from distributing mine roadways, developing new mining method, filling gob area, filling with waste rock, mining coal and gas simultaneously, to reclaiming land and ecosystem, some technical ways are expounded for achieving the sustainable development of mining industry and ecological environmental protection in mining areas.