The invention provides an external traditional Chinese medicine ointment for treating verruca plana. The external traditional Chinese medicine ointment is characterized by being prepared from the following traditional Chinese medicinal materials in parts by weight: polyporus umbellatus, rhizoma phragmitis, chinese mosla herb, mulberry leaf, honeysuckle, coptis chinensis, Chinese gall, radix isatidis, folium isatidis, oyster, fructus forsythia, rhizoma cyperi, liquorice, indigo naturalis, arenobufagin, rhizoma atractylodis, sargentgloryvine stem, pleione bulbocodioides, flos carthami, folium artemisiae argyi, agastache rugosa, rosa rugosa and Vaseline. The external traditional Chinese medicine ointment for treating verruca plana, provided by the invention, is directly attached to verruca plana, and fully acts on the affected part; various raw materials in the components are coordinated with each other, so that the medicine effect can be put into a play to the maximal extent; the external traditional Chinese medicine ointment has the effects of nourishing blood, dispelling the wind, resolving dampness, detoxifying, removing stasis and removing spots, so that the curing aim is achieved; and the recurrence rate is low.