Pediatric cutaneous hemangioma is a benign cutaneous vascular tumor, which is mainly an abnormal proliferation of skin vascular endothelial cells. Isotope dressing treatment is to inhibit the proliferation of vascular endothelial cells by using a short-range (1-10 mm) ray (beta ray) emitted by nuclides, so that the abnormal blood vessels will gradually atrophy and be occluded, and the erythema on the surface of the skin will gradually disappear. Because of the short range of the rays, there is no radiation effect on other parts of the body other than the hemangioma, and the treatment is very safe. The advantages of this method are good treatment efficacy and no scar. The method is simple, economical, painless, itchless and not easy to recur. It is especially adapted to children’s skin hemangioma treatment.