With the improvement of living standards, the symptoms of infant obesity are becoming more common. Clinically, obesity is often caused by excessive eating. These infants have a strong appetite and consume a large amount of food. Treatment mainly involves dietary adjustments, reducing the baby’s food intake while ensuring basic nutrition and nutrients needed for growth and development, and not recommending starvation therapy to avoid inflicting pain on the baby. Prevention primarily suggests breastfeeding, moderate feeding, and avoiding solid foods in the first three months. Feed in small quantities multiple times, and reduce milk intake and substitute it with fruits and vegetables after 6 to 8 months of age.