The efficacy of adjuvant chemotherapy using S-1 for one year after curative surgical treatment for patients with gastric cancer of stage II or III was reported as the result of randomized controlled trial named ACTS-GC in 2007. Therefore the number of patients undergoing this adjuvant chemotherapy is predicted to be rapidly increasing in near future. On the other hand, the government promotes to construct the liaison-clinical pathway for patients with major carcinoma as a policy in 2007. According to these two backgrounds, liaison-clinical pathway for patients with gastric cancer undergoing adjuvant chemotherapy using S-1 after curative gastrectomy has been induced in our institute from November 2007. Not only alliance among doctors, nurses and pharmacologist in our institute but also communication with clinic is important to construct and manage this pathway. Three patients have been undergoing this pathway until now. All of them are satisfied with this pathway because of reliable feelings supported by intensive alliance between our institute and local clinic.