Three cases of carcinomatous cardiac tamponade from breast cancer are presented. All patients have had another recurrence and history of treatment. Though the prognoses were considered to be unfavorable, pericardiac drainage and the instillation of epirubicin were effective. Side effects of fever and dyspnea were experienced temporarily by two patients with no serious events. Following the systemic chemotherapy, two patients needed no supplemental drainage. All patients had a sufficient quality of life for about 1 year or longer. We found that positive therapy can be significant for such patients with advanced disease.