Abstract: The phase of coal mine design is the most significant determining process with respect to coal mine production capacity, and the phase also has profound influence on production scale, safety and ecological environment.At present the method of coal mine production capacity determination is arbitrary and unquestioning to regulate the capacity only depending on reserves coefficient.The index of coal mine sustainable capacity design has been put forward, based on the research result of scientific mining and sustainable capacity.The index system and its mathematical model have been established, and the calculation method of coal mine sustainable capacity has been researched by considering the degree of resources exploration, the endowments condition of resources, thelevel ofmining mechanization, the measures of green mining and the recovery rate of resources.At the same time, the coal mine design sustainable capacity computing systems(CDCS), which can be used in coal mine design phase, has been developed.