The use of temporary food conforms to the traditional thrift spirit of our country, reduces food waste, and meets the requirements of sustainable development at the same time. However, the quality and safety risks of expiring food make most people flinch at it. Only by improving the supervision of quality and safety of expiring food can the utilization be guaranteed and the positive significance of the utilization be brought into full play. Starting from the reality of the booming sales of expiring food, this paper expounded the significance of food processing, analyzed the current situation and existing problems of expiring food quality and safety, and proposed to improve the supervision standards for food products, strengthen social supervision, and promote new technologies application, providing a solid guarantee for the continuous development of China’s expiring food market.