The purpose of this study was to investigate the characteristics in elderly population with obesity by analyzing their blood test. Methods: Included 130 subjects of aged 60 or older went through body composition test, and blood test. We divided them into obesity group and normal group based on body mass index (BMI) results, and then the blood test results were compared between the groups. Results: Forty out of 130 subjects had BMI of 25 or more. Two groups showed significant difference in bilirubin total, alanine aminotransferase (ALT), cholesterol total, triglyceride, high density lipoprotein (HDL), red blood cell (RBC), hematocrite, mean corpuscular hemoglobin concentration, and platelet. All but HDL levels showed significantly higher results in obesity group than normal group. When compared with BMI, blood urea nitrogen, creatinine, ALT, cholesterol total, triglyceride, white blood cell (WBC), and RBC had significant positive correlations. Among those, cholesterol total, triglyceride, WBC, and RBC showed significant difference between two groups, with correlation to BMI. Especially, the average of triglyceride was higher than normal limit in obesity group, whereas it was lower than normal limit in normal group. Conclusions: Triglyceride, cholesterol total, WBC, and RBC are highly related to obese elderly in this study. Old people with obesity need to be careful of cardiovascular and metabolic disease that can be caused by these factors.