Complementary foods is one of the important nutrient sources for infants and young children, and most countries have formulated standards or regulations for complementary foods. The similarities and differences of complementary food standards of CAC and of main developed countries have been summarized and compared with related standards of China, including the legislative body, coverage of standard, regulatory effects, product categories, raw material requirements, nutrient ingredients, contaminants,and analyzed these similarities and differences between them. This study could provide references for the revision of national food safety standards for complementary foods for infant and young children.