A 70-year-old male was performed TURP (Transurethral resection of the prostate) under the diagnosis of benign prostate hyperplasia. Under general anesthesia, two times of TURP and suprapubic prostatectomy were performed for bleeding control during 8 hours. At the end of the operation, hypotension with bradycardia, severe ST elevation, QRS widening, T wave inversion and ventricular tachycardia on EKG appeared. Under the assumption of the diagnosis of hyponatremia, we treated with NaHCO3 and lasix, but cardiac arrest was followed by cardiopulmonary resuscitation. During postoperative five days, patient's cardiopulmonary status was supported by cardiotonic drugs and mechanical ventilation. We report this case to recall TURP syndrome and its management with the review of the relevant literatures.