Gastrectomy patients are always likely to face malnutrition because of a small volume intake, chemotherapy, recurrence of cancer, etc. Authors achieved "Seamless Nutritional Support" for gastrectomy patients using jejunostomy. We applied jejunostomy using a NCJ kit for 244 gastrectomy patients during the gastrectomy operation. Forty four patients did the night time home EN using jejunostomy. The patients maintained a good QOL because of this nutritional support at home. Sixty percent of the patients were performed outpatient chemotherapy with home EN. They could continue the chemotherapy safely on the basis of nutritional care.