The invention provides an accurate-positioning aortic valve passing device. The device comprises a main conduit, a support frame and a control guide wire; the main conduit comprises a first end, a pipe body and a tail end in sequence; the side wall of the head end is connected with the support frame; the control guide wire is installed inside the main conduit, and the control guide wire is fixed inside the head end, passes through the pipe body, and protrudes from the tail end; the tail end is provided with a support switch and a direction control device, the support switch is connected with the support frame and is used for controlling the opening and closing of the support frame, the direction control device is connected with the control guide wire and is used for controlling the direction of the head end. By aiming at the problem of alignment of the aortic valve through the device, and the support frame is connected at the head end of the conduit to avoid the problem of slippage ofthe main conduit; the support frame also functions to fix a movement range of the head end, which prevents the damage of the intima of the blood vessel, ensures the success of the operation within a small number of times, reduces the pain of the patient, reduces the time of surgery, reduces the exposure time of patients and surgeons under the X-ray, and reduces the risk of surgery.