Infant constipation can be appropriate to choose high fiber content of the supplemental food to relieve the symptoms, but the important thing is to clarify the cause of constipation, targeted treatment, the use of medication to follow the doctor’s instructions. Dietary fiber can increase the volume of stool, increase the water content of stool, promote intestinal peristalsis, thereby promoting defecation, reduce constipation, so constipated babies can eat appropriate fiber-rich fruits and vegetables, such as dragon fruit, celery and so on. Infant constipation, the choice of appropriate complementary food is only one aspect, it is important to clarify the cause of constipation, if necessary, drug treatment, such as indigestion caused by constipation, can follow the doctor’s advice to take probiotics (such as Bacillus subtilis bacillus granules) to promote defecation. Constipation may also have other causes, such as intestinal obstruction, congenital megacolon and so on, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.