Congenital arteriovenous malformations have rapid blood flow and can be life-threatening if ruptured, and can affect the appearance. Interventional treatment must be performed to superselect the blood vessels at the lesion site, only then can the abnormal blood flow of the lesion be treated, reduce the unnecessary damage caused by interference with the normal blood flow and preserve the normal function. Selecting the appropriate size of spring coil to block the lesioned vessel can achieve the purpose of permanently occluding the lesioned vessel, and together with appropriate sclerotherapy can achieve the effect of radical cure.