The utility model discloses an electrophysiology catheter, the handle is cylindrical rod body, and the handle left end is equipped with the pull ring, and the handle right -hand member is equipped with the pipe, is equipped with the inner chamber in the pipe, and the pipe left end meets with the air pump that lies in the handle, and the battery is connected through the control switch who lies in the handle outside to the air pump, and the intake pipe is connected to the inlet end of air pump, and the pipe right -hand member is equipped with the tube head, is close to to be equipped with first electrode in the pipe of tube head, is equipped with the ripple area under control near the pipe upside of first electrode, the utility model is simple and reasonable in structure, set to adjustablely through the degree of curvature with the conductivity cell, and then has avoided current device need set up the problem of a plurality of different degree of curvature pipes, very big saving the cost, the practicality is strong.