The invention discloses a traditional Chinese medicinal preparation for treating gastric ulcer and a preparation method thereof and belongs to the field of traditional Chinese medicines. The active ingredients of the traditional Chinese medicinal preparation for treating the gastric ulcer are prepared from the following raw materials in parts by weight: cynanchum wilfordii, placenta of cat, oroxylum indicum, rhizoma nerdostachyos, root-bark of manybract fissistigma, mosla scabra, ceiba bark, helicteres isora, common chicory, hedychium spicatum, Chinese buckeye seed, fragrant cassia bark, bark of fragrant spicebush, grass node in stomach of Ox, wild pig lipid and wild Chinese parasol tree. The traditional Chinese medicinal preparation for treating the gastric ulcer has the advantages that compatibility of the selected medicinal materials is appropriate, composition is unique, a focus can be directly stroked, pathogenetic qi can be removed, treating and conditioning effects are realized, the selected medicinal materials are natural and contain abundant nutrient substances, damaged gastric mucosa can be restored, a recurrent attack source of a stomach disease is eliminated, the selected medicinal materials are free of chemical medicine pollution, safe to take and strong in tolerance, a human body can not produce dependence, curative effect is lasting, no recurrence is caused after healing, and the traditional Chinese medicinal preparation for treating the gastric ulcer can be widely applied to clinical treatment of gastrointestinal diseases.