The invention discloses a traditional Chinese medicinal preparation for treating acute hepatitis and a preparation method, and belongs to the field of traditional Chinese medicines. The active ingredients of the traditional Chinese medicinal preparation disclosed by the invention comprise the following raw materials: herba selaginellae moellendorfii, stellaria media, stem or root lushan mountain barberry, cajanus cajan, galinsoga parviflora, flos chrysanthemi, serrate rabdosia herb, seed of sago cycas, herb of zornia diphylla pers, herb of shady groundsel, japanese violet herb, root of halenia elliptica, liquorice root, fructus lycii, gentianopsis barbata and herb of parnassia palustris. According to the traditional Chinese medicinal preparation disclosed by the invention, the selected medicinal materials are compatible with one another appropriately; the medicinal materials are combined to achieve the effects of clearing heat, detoxifying, activating blood, relieving pain, calming the liver, improving eyesight, disinhibiting dampness, relieving jaundice, eliminating stasis, subduing swelling, resolving dampness, regulating qi, cooling blood, clearing the liver, soothing the liver, relieving the bladder and the like; the traditional Chinese medicinal preparation has the advantages of accurate treatment effect, quick response, high recovery rate, no toxic or side effect, safety and reliability on the symptoms, such as low-grade fever, whole body fatigue and weakness, appetite decreases, nausea, emesis, fat disgust, discomfort liver area and yellow urine, caused by the acute hepatitis, and can be widely applied to the clinical treatment of the acute hepatitis.