A catheter for denervation, comprising: a catheter body extending in one direction to have a proximal end and a distal end and having an inner space formed along the longitudinal direction thereof; a movable member provided at the distal end of the catheter body to be movable along the longitudinal direction of the catheter body; an operating member having a distal end connected to the movable member to move the movable member; a plurality of support members having one end connected to a terminal of the catheter body and the other end connected to the movable member, wherein when the movable member moves to decrease a distance between the terminal of the catheter body and the movable member, at least a partial portion of the plurality of support members is bent so that the bending portion moves away from the catheter body; a plurality of electrodes respectively provided at the bending portion of the plurality of support members to generate heat; and a lead wire respectively electrically connected to the plurality of electrodes to give a power supply path for the plurality of electrodes, characterized in that at least one of the catheter body and the movable member is connected to at least two support members at points which are spaced apart from each other by a predetermined distance in the longitudinal direction of the catheter body, wherein the at least one of the catheter body and the movable member has a step formed at a surface thereof which is connected to the support members or wherein the surface of at least one of the catheter body and the movable member to which the support members are connected, is inclined. a catheter body extending in one direction to have a proximal end and a distal end and having an inner space formed along the longitudinal direction thereof; a movable member provided at the distal end of the catheter body to be movable along the longitudinal direction of the catheter body; an operating member having a distal end connected to the movable member to move the movable member; a plurality of support members having one end connected to a terminal of the catheter body and the other end connected to the movable member, wherein when the movable member moves to decrease a distance between the terminal of the catheter body and the movable member, at least a partial portion of the plurality of support members is bent so that the bending portion moves away from the catheter body; a plurality of electrodes respectively provided at the bending portion of the plurality of support members to generate heat; and a lead wire respectively electrically connected to the plurality of electrodes to give a power supply path for the plurality of electrodes, characterized in that at least one of the catheter body and the movable member is connected to at least two support members at points which are spaced apart from each other by a predetermined distance in the longitudinal direction of the catheter body, wherein the at least one of the catheter body and the movable member has a step formed at a surface thereof which is connected to the support members or wherein the surface of at least one of the catheter body and the movable member to which the support members are connected, is inclined.