The invention discloses a Chinese medicinal composition for treating perianal eczema. The medicament for oral administration comprises the following Chinese herbal medicines in part by weight: 10 to 15 parts of grassleaf sweelflag rhizome, 10 to 20 parts of red paeony root, 10 to 20 parts of largehead atractylodes rhizome, 10 to 20 parts of honeysuckle flower, 10 to 20 parts of Szechuan tangshen root, 10 to 20 parts of peach seed, 10 to 20 parts of rhubarb, 10 to 20 parts of Chinese magnoliavine fruit, 10 to 20 parts of red Indian buead, 10 to 20 parts of cortex moutan, 10 to 20 parts of oriental waterplantain rhizome, 10 to 20 parts of ricepaperplant pith, 10 to 20 parts of swordlike atractylodes rhizome, 10 to 20 parts of root of red-rooted salvia, 10 to 20 parts of fineleaf schizonepeta herb and 10 to 20 parts of baical skullcap root; and the medicament for external application comprises the following Chinese herbal medicines in part by weight: 10 to 30 parts of prepared frankincense, 10 to 30 parts of lightyellow sophora root, 10 to 30 parts of common cnidium fruit, 10 to 30 parts of spreading hedyotis herb, 10 to 30 parts of Sinkiang arnebia root, 10 to 30 parts of densefruit pittany root-bark, 10 to 30 parts of cicada slough, 10 to 30 parts of dahurian patrinia herb, 10 to 30 parts of phellodendron, 10 to 30 parts of alum, 10 to 30 parts of belvedere fruit, 10 to 30 parts of fineleaf schizonepeta herb and 10 to 30 parts of divaricate saposhnikovia root. By the Chinese medicines of the Chinese medicinal composition, liquid medicine can reach the lesion site directly, local blood circulation and lymphatic return can be accelerated, and capillary permeability can be improved so as to achieve the effects of clearing heat and drying dampness, nourishing blood and promoting blood circulation and dispelling wind and arresting itching; and the Chinese medicinal composition is easy to prepare and is worthy of clinical popularization.