We report 3 gastric cancer patients with peritoneal dissemination who were successfully treated with weekly paclitaxel and cisplatin. The patients were 2 men and 1 woman from 57 to 70 years in age. The histological types were 2 poorly-differentiated adenocarcinomas and 1 moderately-differentiated adenocarcinoma. Intravenous infusion of PTX (80 mg/m(2)) and CDDP (25 mg/m(2)) after short premedication was continued for 3 weeks followed by 1 week rest. Ascites improved only after administration of 1 course in all patients.PTX/CDDP is thought to be an effective chemotherapy showing acceptable toxicity against advanced gastric cancer with ascites.