Authors want to report that PTA was an out-standing therapeutic method in treatment of renovascularhypertension by renal artery stenosis due to Takaysu's arteritis in an 18-years-old Korean female. Abdominalaortogram and bilateral renal arteriogram showed mild smooth narrowing of the mid abdominal aorta of 4cm lengthfrom origin of renal arteries, complete occlusion of left renal artery from it's origin with a few smallcollateral arteries and severe stenosis of proximal right renal artery. PTA of right renal artery was performedwith Gruntzign Balloon dialtation catheter, and the patient's blood pressure was down to 120/80 from 220/130,stable for 8 months follow-up examination. Takayasu's arteritis is one of the msot important cause of renovascularhypertension in Orenals. Multiple treatement modalities, such as steroid administration or variable surgicalintervention, were attempted and limited response was presented. But PTA is a simple, cost-effective, repeated,and relatively complicaiton-free method intreatment of renovascular hypertension due ot Takayasu's arteritis, withan outstanding result, as authors case.