Abstract: Particle radiotherapy using proton and heavier-ion beam was first proposed for clinical application by Robert Wilson in 1946.Compared to conventional photon radiation,proten and heavier-ion beam has significant physical advantage,and heavier-ion has unique biological characteristics.With the development of accelerator and radiation technique,it is being investigated for tumor treatment in many clinical centers.This article reviews the current status of clinical application of particle therapy using proton and heavier-ion beam in digestive system tumor.