A kind of method dealing with basic flux in production of basic pellets is proposed in this paper, that is, the basic flux is treated by means of grinding the wet mixture of limestone and iron ore fines. Through experiments on balling performance and roasting performance of mixed grinding material of different ratio of flux and iron ore fines, the influence of mixed grinding of limestone and iron ore fines on pellet quality was studied. The research result indicates that, by means of grinding the mixture of limestone and iron ore fines, finer particle size distribution can be obtained, and the surface activity increases. After the grinding mixture is used, green ball performance indexes are somewhat improved, the drop strength of green balls increases with the increase of proportion of grinding mixture, and the compressive strength of roasted balls can meet the production requirements.