The invention relates to third-degree burn and scald repair ointment, which is external ointment for promoting the formation and dissociation of phloem islands, the union of third-degree surface of burns and scalds and growth of skin without skin grafting. The third-degree burn and scald repair ointment consists of Chinese arborvitae twig, garden burnet root, hairyvein agrimonia herb and bud, platanthera tuber, hedgehog hide, Chinese gall, Japanese ampelopsis root, astragalus, giant knotweed rhizome, cuttlebone, hard charcoal, dragon's bone, humus flava usta, phellodendron, purpleflower hollyleaf, thickleaf croton root, oyster shell, human placenta, pig skin, sesame oil, beeswax and borneol. The third-degree burn and scald repair ointment has the effects of astringing to arrest bleeding,removing putrefaction and promoting tissue regeneration, strengthening body resistance and cooling blood and the like under the synergistic action of each medicament, is used for promoting the formation and dissociation of the phloem islands and the union of the third-degree burn and scald wound surfaces, has a good curative effect, quick response, an effective rate of 100 percent and an effect of addressing both symptoms and root causes, and can fulfill the aim of relapse prevention after the skin heals. The third-degree burn and scald repair ointment also can be used for various ulcer woundsurfaces of the skin.