Nutrition legislation is of great significance to promote the national nutrition work and improve the nutrition and health status of the people. It is also the key to help build a healthy China and realize a well-off society in an all-round way. This paper discusses the necessity of China’?s current nutrition legislation and the significance of promoting nutrition legislation and fully implementing the spirit of the 20^th National Congress of the Communist Party of China. Analyzed from the aspects of promoting the improvement of nutrition and health， promoting social and economic development， improving the working mechanism， improving the system of nutrition laws and regulations， and strengthening the technical support of nutrition work. This paper expounds the significance of nutrition legislation to the implementation of healthy China strategy and the promotion of national nutrition improvement.