The invention discloses a traditional Chinese medicine preparation for treating gaseous distention and a preparation method thereof, and belongs to the field of traditional Chinese medicine. The active ingredients of the traditional Chinese medicine preparation are prepared from the following raw materials: melodinus suaveolens, sensitive joint vetch root, caloglossa, dichotomous cordia root, martianus dermestoides, pepper, tartarian buckwheat root and rhizome, lilac daphne flower bud, carambola root, maltose, notholirion bulbuliferum, shaddock, dasheen, lobedfruit schizocapsarhizome, ligusticum pteridophyllum franch and concretio silicea bambusae. The medicinal materials of the traditional Chinese medicine preparation are appropriately combined according to the theories of traditional Chinese and modern medicine and pharmacology and have the effects of harmonizing stomach, relieving pain, promoting digestion, eliminating stagnation, removing toxicity, diminishing swelling and regulating qi circulation. The traditional Chinese medicine preparation, has remarkable curative effect on stomachache, gastrectasia, hyperchlorhydria and other symptoms caused by gaseous distention, is short in course of treatment, can take effect quickly, is safe and reliable, does not have toxic or side effect, does not impact working or life of patients when the patients take the preparation, is low in price, is effective and practical, is capable of treating both symptoms and root causes, and is worthy of wide clinical popularization and application.