Abstract: To achieve high-quality and efficient utilization and cascade comprehensive utilization of vein quartz resources, which have significant industrial value, this paper takes a certain vein quartz in Xinjiang as the research object and conducts a detailed process mineralogy study to clarify the occurrence states of the main gangue minerals （calcite, muscovite, limonite） and impurity elements （Al, Ca, Fe） in the ore. Through crushing, grinding and screening, three particle size products of −1.2 mm+0.6 mm, −0.6 mm+0.1 mm and −0.1 mm are obtained, and the research on the stepwise utilization with different product positioning is carried out specifically. For the −0.6 mm+0.1 mm particle size, the influence of different magnetic separation methods and magnetic field intensities on the purification of quartz is studied, and finally a quartz sand for photovoltaic glass with a SiO₂ content of 99.52% and a Fe₂O₃ content of 0.009 4% is obtained. For the −1.2 mm+0.6 mm particle size, the influence of different hydrochloric acid dosages on the whiteness of quartz sand is studied, and a board quartz sand with a whiteness of 95.62% is obtained. For the −0.1 mm particle size, a superconducting magnetic separation test is carried out, and a quartz sand batching material for flat glass with a SiO₂ content of 98.30% and a Fe₂O₃ content of 0.199% is obtained. This process features a simple workflow, diverse product types, and provides practical guidance for the comprehensive utilization of vein quartz.