Purpose: This study was conducted to evaluate nutritional status, and the effects of lifestyles and depression on nutritional status of elderly people (NSE). Method: The participants were 280 elders who visited the Y city Senior Welfare Center between August 2006 and October 2006. Data were collected using a structured questionnaire that included general characteristics, lifestyle checklist, depression scale, and nutritional risk index. Also, Body Mass Index (BMI) was calculated from height and weight. T-test, ANOVA, Duncan test, Pearson coefficients correlation and stepwise multiple regression were used to analyze the data using the SPSS Win 12.0 program. Results: The NSE mean score was mid level at 5.03 BMI was 23.42 which indicates overweight. Depression was the factor that influenced the nutritional risk index most strongly, accounting for 17.3% of the total variance in the NSE. A combination of significance of health, concerns about health, housing, condition of teeth, activity, and smoking pattern accounted for 29.8% of the variance in the NSE. Condition of teeth accounted for only 3.8% of the variance in BMI. Conclusion: It is necessary to be aware that variance in the NSE can be affected by several factors including depression and lifestyle and that depression is strongly related to poorer NSE.