Abstract: Based on the regular block grade model and surface model， cone exclusive method was used to obtain a sequence of “geologically optimum final pits” and “geologically optimum pushbacks”. The geologically optimum pushbacks were put into an asbuilt dynamic sequencing model with the maximum NPV as the target function， which found out the best way as the optimum mining scheme. Then the best mining path of every geologically optimum final pit was found out as the optimal mining scheme. According to production plan of every geologically optimum final pit， the final pit with the largest NPV was chosen as optimum final pit， the best mining path of which was further chosen as the optimal production design， realizing the simultaneous optimization of the final pit and production design. Based on the ecological footprint theory， the mine ecocost model was constructed. The mine ecocost was calculated combining with the boundary production plan， which was added to boundary to make the exogenous ecocost endogenous， achieving the economicecological optimization of mine project and design. Application showed that ecocost has significant effect on ultimate boundary and mine returning on investment.

Key words: openpit mine, boundary optimization, production plan, ecological cost, net present value(NPV)