The invention relates to a Wuhuang ointment for treating burn and scald, characterized by comprising the following medicinal raw materials in parts by weight: 15-30 parts of rhubarb, 10-25 parts of coptis root, 15-25 parts of phellodendron bark, 10-25 parts of hyacinth bletilla, 6-15 parts of poppy shell, 25-45 parts of rehmannia root, 6-15 parts of borneol, 10-25 parts of twig, 10-25 parts of arborvitae tops, 80-120 parts of beeswax and 450-550 parts of sesame oil. The preparation method of the ointment comprises the steps of: crushing the rhubarb, the coptis root, the phellodendron bark, the rehmannia root, the hyacinth bletilla, the poppy shell, the twig and the arborvitae tops in proportions by weight into coarse powder, adding into the sesame oil, decocting until the medicinal raw materials are dried up, removing dregs, filtering, adding the beeswax and the borneol, and collecting the ointment for later use. The traditional Chinese medicine ointment for external use provided by the invention has the efficacies of clearing away heat and toxic material, removing heat from the blood, promoting the subsidence of swelling, resisting bacteria, alleviating pain and promoting tissue regeneration, and is used for treating first degree and second degree burns and scalds.