Legal basis: Notice of the State Council on Printing and Distributing the Program for Women's Development in China and the Program for Children's Development in China. Improve the nutritional status of children. Strengthen the construction and management of baby-friendly hospitals, improve and implement relevant policies to support breastfeeding, and actively promote breastfeeding. Carry out scientific feeding, reasonable diet and nutritional supplement guidance to improve the knowledge level of parents of infants and young children. Strengthen the skills training of health personnel to prevent and treat nutritional diseases such as malnutrition, anemia and obesity in children. We will implement the nutrition and health intervention project for preschool children in poverty-stricken areas and continue to implement the nutrition improvement plan for primary and secondary school students. Increase the publicity and popularization of knowledge about prevention and treatment of iodine deficiency disorders, and improve the consumption rate of qualified iodized salt in iodine-deficient areas.