The turnkey project for sand making and sand washing wastewater treatment adopts intelligent automatic control technology for the whole system. The equipment in the system has reasonable division of labor and operates stably and reliably. Each equipment in the system is equipped with a negative feedback automatic detection device, and the data is automatically collected, and hidden dangers are exposed in advance. It is seamlessly connected with the intelligent sand and gravel mine central control system. The maximum processing capacity of a single unit is 500 tons of sand washing wastewater. It has been verified that the overall project has reduced the workload of on-site inspections by 45%, shortened the equipment operation cycle by 36%, and optimized the special labor by more than 20%.