Abstract: Rock mass quality evaluation is an important prerequisite for underground engineering excavation,design,construction and mining production.The structural plane characteristic parameters and basic mechanical parameters of V vein ore were obtained by investigating rock structural plane information with digital photogrammetry and point load test,and then the rock mass quality was graded by the BQ rock mass quality evaluation system.The results show that V vein ore is hard rock with high uniaxial compressive strength.The surrounding rock on the upper wall of the V vein is grade Ⅳ rock mass,which is broken,and there are obvious water droplets in some areas of the rock wall.The footwall surrounding rock is grade Ⅲ rock mass with relatively complete rock mass and a humid water environment.The whole ore body is grade Ⅲ rock mass,and the local broken area is grade Ⅳ rock mass,the rock is hard,the rock mass is relatively broken,and there are obvious faults through some areas.The shallow-hole shrinkage mining method for mining V vein ore bodies has great hidden safety risks and will increase mining loss and dilution.Therefore,it is recommended to choose the filling mining method as the mining scheme for this kind of ore body.