Cherishing and saving food is a positive attitude and behavior, which aims to remind people to cherish food resources and avoid waste. Food is the basic demand of human life, but the global food resources are facing an increasingly tense situation. Therefore, we should start from individuals, reduce waste, protect the environment, and contribute to sustainable development by saving food. Saving food can not only reduce resource consumption, but also reduce food prices and improve the stability of food supply. So the signature of loving grain and saving grain can be changed to loving grain and saving grain.