Abstract: The intestine is not only the digestive and absorbing organ of nutrients but also the largest immune organ.Weaning stress can cause serious damage to the intestinal tract of piglets,which always results in atrophied intestinal villi,decreased feed intake,disordered digestion and absorption of nutrients,and reduced immunity,thus causing a series of symptoms such as diarrhea,indigestion and slow growth in piglets.Therefore,improving intestinal function and repairing intestinal injury by nutritional regulation ways can protect intestinal health of piglets,improve survival rate and productive performance,and increase breeding benefits.In this paper,the nutritional regulation technology of piglets intestinal health and its application were reviewed.