PURPOSE: A balloon catheter is provided to be individually or independently expanded, thereby effectively performing operations such as blood vessel expansion or tissue expansion.CONSTITUTION: A balloon catheter comprises a tube(10), a balloon(20), and a connecting member(30). The tube is extended to longitudinal direction. The balloon is fixed in one end of the tube and inserted into a body and expanded or shrinked by internal pressure control. The connecting member is fixed in the other end and connects a syringe to the tube. The syringe injects fluid for expanding the balloon. The tube comprises a first tube member and a second tube member. The first tube member is extended to longitudinal direction and forms a first path inside. The second tube member is place to cover the first tube member from outside.COPYRIGHT KIPO 2012본 발명에 따른 벌룬 카테터에서는, 튜브가 체내의 혈관이나 조직의 형상에 대응되는 형상으로 용이하게 구부러지게 할 수 있는 구성을 제시한다.