The invention discloses an artificial respirator for cardiology, which comprises an air inlet nozzle, a mouthpiece, a partition and an inflatable balloon, the partition is connected between the inlet nozzle and the mouthpiece, and a round hole is arranged in the center of the partition , the air intake nozzle is connected to the mouthpiece, and the one-way valve is arranged in the air intake mouth; the front end of the mouthpiece is connected with an extension pipe through an arc-shaped transition section; the arc-shaped transition section is provided with a conical air bag, and the arc The transition section is provided with a ventilation port communicating with the conical air bag; the upper end of the air inlet nozzle is connected with a conduit, the upper end of the conduit is connected with a pressure gauge, one side of the conduit is connected with an artificial inflation tube, and the upper end of the artificial inflation tube is connected with an inflatable Mouth; in the present invention, when an unexpected situation occurs in the inflatable balloon and cannot be used, the artificial inflatable tube can be used immediately, buying time for the patient, preventing the spray of the patient's vomit, not splashing the medical staff, and not causing the spread of bacteria, ensuring Give artificial respiration unobstructed.