To examine the regional supply-demand balance of food from the perspectives of food type and food nutrition is an effective attempt to practice the big food concept and promote the supply-side structural reform in the agricultural sector. In this paper, the production and consumption of 8 food types and 3 nutrients in 11 coastal provinces were measured by using food type accounting methods and food nutrition transformation models. On this basis, this paper explores the supply-demand balance of food types and food nutrition,integrates and compares the differences of food type and food nutrition, and further explores the path of restructuring food supply and demand in coastal areas. The results show that: 1) In terms of production, it had a large production of food type in many coastal areas, it has larger nutrition production in Shandong, Jiangsu and Hebei, and smaller in Fujian, Hainan, Tianjin and Shanghai. 2) In terms of consumption, it has relatively high consumption for food type and nutrition in Guangdong, Shandong, Jiangsu, Hebei and Zhejiang. Population is the first factor determining food consumption. 3) In terms of the supply-demand balance,the supply of vegetables, fruits and aquatic products in coastal areas is sufficient, but edible oil is seriously insufficient. It had large surpluses in many types in Shandong, Hebei and Liaoning, while it has large shortages in most types in Guangdong. In terms of nutrient supply-demand balance, protein is better than energy and fat, but overall, the self-sufficiency of food nutrition is not optimistic and superimposed on the problem of nutritional imbalance. Food nutrition surplus is mainly concentrated in Shandong and Jiangsu, nutrition deficits is mainly concentrated in Guangdong. 4) It should follow the principle of "consolidating strong points and supplementing weak points" on the supply side and "promoting healthy diet and reducing food waste" on the demand side to adjust the supply-demand structure of food in coastal areas.
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