The invention discloses a medicine for treating a stomach disease. The medicine for treating the stomach disease comprises the following components: rhizoma fagopyri cymosi, radix bupleuri, white paeony root, aspongopus, curcuma aromatica, cyperus rotundus, galangal, lily, salvia milltiorrhizae, galangal, fructus amomi, cuttle bone, fingered citron, sculellaria barbata, oldenlandia diffusa, immature bitter orange, bletilla striata, polygala tenuifolia, liquorice, caulis perllae, dried tangerine or orange peel and cutch. The medicine for treating the stomach disease can be used for effectively killing helicobacter pylori, the stomach disease can be rapidly treated, curative ratio of the stomach disease reaches 96%, and the medicine for treating the stomach disease is prepared into pills, so that the advantages of convenience in carrying and taking and high efficiency are also realized.