Abstract: The continuity and economy of ore hauling process system is the important content of mine technological management.Based on the exploitation status of overlapped ore body in northwest stopes under Daxin Manganese Mine,the problems existing in the available ore hauling process system were analyzed.Furthermore,four types of hauling process optimization schemes were determined on the basis of primary selection.By systematically analyzing the technical economy of optimization schemes,the optimal hauling process scheme b （Ⅰ and Ⅱ,Ⅲ orebody with waterfall shared chute) was synthetically determined.The optimal scheme owns the advantages as following；reduce the scraper series of Ⅰ orebody and improve the efficiency of ore drawing；Integrate the shaft structure of Ⅰ，Ⅱ and Ⅲ orebody and embody the systematization of ore drawing structure arrangement；Reduce the production cost,increase the ore recovery rate and realize the maximum economy.Research results can provide technical references for the design of ore hauling process system in mining of similar multi-layer,gently inclined and thin orebody.

Key words: Overlapped orebody, Ore hauling process system, Ore drawing structure, Optimization