Abstract: Full recovery and utilization of low grade ore is an important way to improve the recovery rate of mine resources and comprehensive economic benefits.In order to improve the recovery rate of low-grade ore in Xigou Mine,on the basis of summarizing and analyzing the technical problems in the process of resource recovery and utilization,the technical research was carried out from the aspects of 3D modeling of ore body,grade difference analysis,quality control scheme,remote monitoring of the chute and the reconstruction of the counterattack broken cutting port.The bottleneck problems such as unclear low-grade geological resources,large difference of dilution between divided ore and block ore,prominent fault problem of chaff blockage,easy blockage of crusher feed hole are solved,and the stable production of low-grade ore in the mine was ensured.In recent 4 years （from 2018 to 2021）,2.08 million tons of low-grade ore was recovered,and the comprehensive recovery rate of ore was increased from 93.5% to more than 95%.The mine service life was effectively extended,and significant economic and social benefits were obtained,which has a certain reference for similar mines.