The invention discloses a traditional Chinese medicinal formula for treating acute gastritis. The traditional Chinese medicinal formula comprises the following Chinese herbal components in proportionsby weight: 24g of rhizoma pinelliae, 16g of radix ophiopogonis, 7g of radix ginseng, 6g of radix glycyrrhizae, 7g of non-glutinous rice, 12 Chinese dates, 28g of radix scrophulariae and 24g of radixrehmanniae. A preparation method and a using method of the traditional Chinese medicinal composition are as follows: firstly, medicinal materials are soaked in water for 1 hour, are put on a fire, boiled on a big fire and decocted for 50 minutes on a small fire after boiling, and a decoction is poured out; one dose is warmly taken by 3 times every day, 6 doses are taken in one course of treatment,and 5-8 courses of treatment are required during medication.