The invention provides a Chinese medicinal formula for treating hepatitis B, which comprises the following raw materials in parts by weight: 10-30 parts of radix sanguisorbae, 10-30 parts of radix lithospermi, 10-20 parts of rhizoma picrorhizae, 10-20 parts of capejasmine, 10-30 parts of the root of red-rooted salvia, 10-20 parts of radix curcumae, 2-8 parts of felwort, 10-20 parts of bistortae, 2-8 parts of cooked rhubarb, 10-30 parts of herba lysimachiae, 10-30 parts of tarragon and 10-20 parts of cornu bubali. The Chinese medicinal formula for treating the hepatitis B, which is formed by matching of the traditional Chinese medicinal materials, has the characteristics of remarkable effect, small toxic and side effects and capacity of treating both manifestation and root cause of the disease; the hepatitis B nearly does not relapse after being cured. In addition, the Chinese medicinal formula is prepared from pure natural traditional Chinese medicine and has the advantages of low treatment cost and the like.