The biggest significance of sand making by wind selection and screening technology is that better sand grading can be obtained. High-quality sand can be prepared by wind selection and screening technology. Through wind adjustment, the material can be vaguely screened, and some 0.3-3mm particles that should have formed sand can be leaked into the rework to supplement the proportion of sand in the range of 0.15-1.18mm.The indicators of fine sand prepared by wind separation and screening technology can easily meet the requirements of concrete aggregates and construction sand.