The sharing economy has the characteristics of resource-saving and environment-friendly, which is consistent with the goal of reducing food waste, and the cooperative consumption brought by sharing also is in line with the principles of food surplus redistribution and food waste management.In the current practice of reducing food waste in China, the sharing economy model, which is mature in other fields, has less penetration into the food sector, although the overseas food sharing models had become very popular, which definitely exerts a positive effect in reducing food wastage. Therefore, focusing on reducing food sharing practices, the paper combed foreign literature research for the relationship between reducing food waste and sharing practices，the food sharing models and the innovative ideas on reducing food waste in the era of digital economy. On this basis, it also proposed that it is necessary to investigate how to apply the sharing model of platform economy to the food waste management in China and put more intensive energy on the research topics on sharing participants, sharing fields, sharing platform and sharing policy.