Infants aged 0-2 months are best to swim once every 2-3 days, and the specific time should be determined by the infant’s physical condition. Swimming has many benefits for infants, including improving respiratory function, increasing muscle strength, promoting bone and brain growth and development as well as consuming excess fat and strengthening the body’s immune system. In general, infants need to swim for about 10-15 minutes each time, too long exercise may cause heart burden, easily cause chest tightness, shortness of breath, shortness of breath and even deficiency and other symptoms. Infants need to ensure that the room temperature is above 28℃ when swimming, and the water temperature should be controlled at about 38℃. In addition, infants need to be watched during the swimming period, to observe whether the infant has any abnormal performance, such as crying, breathing, etc., if there are abnormalities should be stopped immediately. In addition, it is recommended that infants swim half an hour to one hour after eating. At the same time, infants need to ensure that their diet is nutritious and rich in protein and vitamins before swimming. If the umbilical cord has not yet fallen off, you should prepare sterilized items for cleaning the belly button.