Four-month-old babies still need to breast milk as the main food, can be accompanied by a small amount of complementary food, a small amount of feeding, gradually increase. Complementary food recipes according to different ingredients, can be divided into the following: 1, carbohydrate class: you can choose rice soup, millet soup, more dilute rice porridge, but also the choice of special rice flour for infants, according to the instructions of the method of blending. Parents can also choose yams, potatoes, sweet potatoes, pumpkin and other ingredients for steaming, and then use a spoon or cooking machine to make a puree. If parents feel that it is too thick, they can add a small amount of milk and blend it together; 2, protein: steamed egg custard or crushed egg yolk, made into egg yolk puree, but also fresh shrimp, lean meat porridge or cooked and made into meat puree; 3, vitamins: you can use fruits and vegetables, such as apples, bananas, oranges, tomatoes and other fruits, made into fruit juice or fruit puree. Parents who choose fresh vegetables made of vegetable juice should be boiled. Parents are advised to choose ingredients that are easily digestible and easily absorbed. Because four-month-old babies are just starting to add complementary foods, so do not give your baby too much at once, but gradually add the intake gradually so that your baby’s gastrointestinal tract has the process of adaptation. But still breastfeeding or formula feeding should be the main focus, not to be able to completely replace milk products with complementary foods. Monitor your baby’s height, weight, trace elements and other indicators to avoid malnutrition.