AST Chiro Qi-gong (AST Qi-gong) has been reported about the effects on several diseases including cancer, hitherto. Authors tried to invetigate the effects of AST Qi-gong on the induction of apoptosis in gastro-intestinal cancers. There were three types of Qi-gong effects; the first was induction of apoptosis mainly, the second was induction of both the apoptosis and inhibiton of cell cycle, and the third was inhibition of cell cycle mainly. Although further study is indispensable for critical role of these mechanism, these observation suggested that the induction of the apoptosis was one of the therapeutic mechanism of AST Qi-gong against cancer.