Plant foods contain abundant bioactive peptides,wherein antioxidant peptides,antihypertensive peptides,immunomodulating peptides,anti-obesity peptides,hypocholesterolemic peptides,anti-tumor peptides,opioids and antithrombotic peptides have been widely reported. The amino acid sequences of the small molecule peptides in the plant foods which have been identified by researchers were reviewed herein. This work could provide reference for the further research on the bioactive peptides.