The intestinal health problem can largely impede the development of pig industry.With the ban in in-feed antibiotics,natural plant bioactive compounds (NPBCs) characterized by little residue,no resistance,and minimal side effects,are attracted great attention and have been reported to improve intestinal health and growth performance in pigs.This review summarizes the effects of NPBCs on intestinal morphology,digestion and absorption function,barrier function,antioxidative capacity,immune function,and microflora in pigs,and raises several problems needed to be further studied,and thereby provid...