This paper introduces the process flow, the technical performances of the major equipments and technical characteristics of mode GJM-90 superfine wet grinding line of zirconium silicate. The productive practice has shown that for this production line, the process design is reasonable, the performances of the equipments are good, the production cost is low, and the produced superfine zirconium silicate powder comes up to the quality grade required for the emulsifying agent of glaze using for high-grade ceramics in China.