Abstract: In order to improve the quality of photovoltaic glass sand products in a quartz sand mine in Wenchang, Hainan. It used methods such as MLA and electron microscopy to identify the properties and occurrence states of minerals, and conducted purification experiments on quartz sand. The results of experimental show that the content of SiO₂, Al₂O₃, Fe₂O₃, TiO₂, and ZrO₂ in the raw sand of quartz is 96.67%, 1.67%, 0.14%, 0.12%, and 0.01%, respectively.Harmful components mainly adhere to surfaces, fault and acid oil on quartz particles in the form of argillaceous and Ferruginous. After transforming the traditional process which consists of gravity concentration, magnetic separation and acid leaching into the new technology consists of scrubbing, grading, spiral gravity separation, wet magnetic separation, and alkali leaching. The experiment increased the recovery rate of SiO₂ from 89.60% to 95.57%. The SiO₂ increased from 99.42% to 99.74%, Al₂O₃ and Fe₂O₃ decreased from 0.18% and 0.04% to 0.05% and 0.008% in the products of quartz,which can meet the demand for raw materials of photovoltaic glass. The experiment purified the spiral heavy product to obtain zirconium titanium coarse concentrate that contains 5.18% ZrO₂ and 23.78% TiO_2. At the same time, Quartz tailings can be reprocessed into drying sand for casting or fracturing. This experiment has improved the recovery rate and added value of siliceous products.