Abstract: There are many types of ores with different grade in Wulongquan open stope，and parts of low-grade ores are accumulated inside the stope since it can not meet the requirements of the follow-up production and processing directly.The accumulation influences the orderly propulsion of the stope and the improvement of the mining production.The linear programming theory is adopted to build the ore blending model，and find the proper ore blending technical solutions for the low grade ore of Wulongquan open stope.The working face arrangement on Wulongquan Mine is optimized based on specific ore blending technical solutions.The optimized working face arrangement with technical solutions is applied to production plan of Wulongquan Mine.Engineering practices show that the specific ore blending technical solutions take full advantage of the internal ores to participate in ore blending，which is helpful to improve utilization of the ow-grade ores and reduce the cost of ore blending.The specific ore blending technical solutions can be effectively achieved in Wulongquan open stope after the working face arrangement has been optimized.Therefore，the optimization is helpful to recover the low grade ores，promote orderly propulsion of the stope and improve the production and operational efficiency of the mine.

Key words: Ore blending, Working face arrangement, Optimization, Linear programming method