The utility model discloses a quartz sand production system, comprising a crushing system, a mineral separation system, a flotation system and a drying system, which are sequentially connected through belt conveyors. By summary of experience in quartz sand production practice, the quartz sand production system is divided into the crushing system, the mineral separation system, the flotation system and the drying system, and then matched machines and the belt conveyors are added to the system in each step. The quartz sand production system is high in automatic degree, low in operation cost, high in crushing efficiency, low in energy consumption and small in pollution.