The invention relates to a Chinese patent medicine for treating gastric diseases. The Chinese patent medicine is characterized in that the medical prescription comprises prepared milkvetch root, cassia twig, medcinal evodia fruit, cassia bark, cuttlebone, peach seed, safflower, Chinese angelica, Szechuan lovage rhizome, red paeony root, salvia miltiorrhiza root, tree peony bark, rhizoma corydalis, wenyujin concise rhizome, common burreed rhizome, zedoary, leech, costustoot, bitter orange, combined spicebush root, golden thread, prepared liquoric root and rehmannia root. Compared with the prior Chinese patent medicines for treating the gastric diseases, the Chinese patent medicine of the invention has more reasonable formula, the synergy among various medicine components can promote the blood circulation of gastrointestinal mucosa, can rapidly recover the inflammation parts and the gastric ulcer surfaces thereof and can achieve the treatment effect on activating blood circulation, activating qi-flowing, relieving pain, nourishing qi, strengthening spleen and regulating spleen and stomach, the efficacy is remarkable and the Chinese patent medicine has no toxicity or side effects; the formula has the efficiency on swallowing acid, warming stomach, benefiting qi for warming stomach, dispelling cold, activating qi, activating blood circulation and relieving pain. The Chinese patent medicine is mainly used for gastric ulcer and duodenal ulcer caused by deficient cold of spleen and stomach, cold coagulation and blood stasis, as well as chronic atrophic gastritis.