Yezhutian konilite deposit is weathering crust deposit. By analysis the geologic characteristics and ore-controlling factors of Yezhutian konilite deposit, the ore-controlling factors include stable platform carbonate siliceous sedimentary formation, karst erosion surface, terrain condition and palaeogeographic condi- tion. It' s thought the weathering crust konilite exploration has big potential in Majiang and nearby area.