There are 343 cases of hemangioma who were treated by pulse laser in our hospital . 308 cases who had follow-up data of them were carried out by means of a retrospective study and statistical analyzed respectively dividing into groups of age and disease.The results show that cure rate and total utility rate of curative effect are relative with age in those patients with strawberry hemangiomas ,who should be treated early,and not in those of naevus flammeus. Strawberry hemangiomas are real tumors and naevus flammeus are vascular malformations.There are differences in vascular endothelial cells. The various results of curative effort may be related with that in different patients.