The purpose of this study was to determine the changing patterns of nausea, vomiting, anorexia and calorie intake. To examine the influence of those variables on the nutritional status of the cancer patients receiving chemotherapy. Method: To assess nutritional status, anthropometry and blood test were performed on 94 stomach cancer patients receiving postoperational chemotherapy on the daily basis. NVA and calorie intake were measured during chemotherapy. Result: 93% of subjects had low level of hemoglobin and 45.7% was below the lymphocyte count. 57% of subjects lost 10% of usual weight. The value of anthropometry was reduced but the difference between pre- and post-chemotherapy did not reach any statistical significance. 27% of subjects was grouped into the malnutritional state. During chemotherapy, the higher the degree of NVA, the less calorie intake. The significant predictors for nutritional status were nausea and calorie intake. Conclusion: The chemotherapy affected the food intake of cancer patients through NVA. Though the influence of chemotherapy on anthropopmetry was not significant in this research, nausea and food intake were the most affecting factors for nutrition of cancer patients. Therefore we need to assess nutritional status and support for cancer patients receiving chemotherapy and to develop an intervention for improvement of symptoms and food intake.