Introduction: Nodal metastasis has been thought important factor to predict the prognosis of gastric cancer patient. Even nodal metastasis has been crucial for making a treatment options (surgery or endoscopy) in early gastric cancer. Thus far, nodal metastasis has been studied for associated factortumor size, cell differentiations, depth of invasions. Recent epidemiologic studies have shown a positive association between obesity and cancers. And hyperlipidemia and insulin resistance have been known as an independent risk factor for nodal metastasis of gastric cancer. Although obesity is as an independent risk factor of nodal metastasis, relevant clinical data are limited. In order to measure relation of nodal metastasis and obesity variables, this paper analyzes obesity variables including visceral and peripheral fat volume. Methods: During 5-year period, the patients who underwent gastrectomy for gastric cancer were selected. Retrospectively, we examined the patients' BMI, Cholesterols, Glucose and fat volume distribution using CT scan before gastrectomy. We analyzed the resected pathologycell type, differentiation, depth of invasion and lymph node metastasis. Result: A total of 671 patients(456 men, 215 women) were analyzed. Positive relationships existed between two groups(no meatstasis vs metastasis) in the ratio of visceral to peripheral fat volume(1.13 ±0.46 vs 1.48 ±0.97 p<0.01), only in men. No significant differences between two groups (no metastasis vs metastasis) were found in BMI, age, sex. The other relationships were negatively correlated total cholesterols, LDL and HDL. Conclusion: Our results prove the relationship between obesity and nodal metastasis in men. And the measurement of obesity should be examined fat volume by CT scan rather than measurement of weight.