We report a case of pulmonary artery perforation induced by Swan-Ganz catheter. Brisk massive airway hemorrhage occurred after withdrawl of the Swan-Ganz catheter post cardiopulmonary bypass. Early recognition, immediate re-establishment of cardiopulmonary bypass, lobectomy of the sanguineous lobe subsequent to rupture of the involved pulmonary artery, and thorough bronchial toilet were the major determinants contributing to successfully rescuing the patient's life. She was discharged uneventfully in spite of high mortality rate of the catheter-induced pulmonary artery perforation.