Taking maximum net present value as an optimum target and considering factors in mining, milling and metallurgy, a dynamic optimum method for optimizing cutoff grade of underground orebody is given.

• 摘要以净现值最大为优化目标，同时考虑采、选、冶三阶段因素，给出了地下开采矿体边界品位动态优化的方法。