Objective To explore the correlation between the level of serum uric acid and metabolic syndrome and associated factors including overweight,abnormality of blood glucose,blood lipid,and hypertension.Methods 654 cases of complete medical records,aging from 30-90with median age of 65 ,were completed were selected,Data base was established by using Excell software,meanwhile,single factor analysis and stepwise regression analysis were performed using SPSS 11.0 software package.Results The levels of serum uric acid of patients with overweight,high fasting blood glucose (FBG),hypertriglyceride (TG),high-density lipid cholesterol (HDL-C)and essential hypertension (EH)were higher than that of patients without overweight,normal fasting blood glucose,normal triglyceride,low high-density lipid cholesterol and without hypertension,respectively [respectively,(270.52 ±81.63 )μmol/L vs.(226.61 ± 67.42)μmol/L,t=-7.387,P=0.000;(265.71±73.50)μmol/Lvs.(235.03 ±75.00)μmol/L,t=-4.459,P=0.000;(262.80 ±74.45 )μmol/L vs.( 235.82±75.04)μmol/L,t=-3.927,P=0.000;(243.97 ±76.33)μmol/L vs.(212.78±57.60)μmol/L,t=-2.412,P=0.016;(282.87±64.79)μmol/L vs.( 180.22±41.60)μmol/L,t=22.59,P=0.000 ].The patients with metabolic syndrome (n=107)and the patients without metabolic syndrome (n=547)were included in our study.The level of serum uric acid of patients with metabolic syndrome was higher than that of patients without metabolic syndrome [(301.22±68.55 )μmol/L vs.(230.72±71.63)μmol/L,t=9.376,P=0.000].Stepwise regression analysis showed that there was positive correlation between systolic blood pressure (SBP),diastolic blood pressure (DBP),the body mass index (BMI),triglyceride (TG),high-density lipid cholesterol (HDL-C),fasting blood glucose (FBG)and the level of serum uric acid,respectively (t=3.409,13.401,6.979,2.943,3.514,4.706 respectively;P=0.000,0.001,0.000,0.003,0.000,0.000 respectively).Conclusion The level of serum uric acid in patients with metabolic syndrome is higher than those without metabolic syndrome.There is positive correlation between the level of serum uric acid and associated factors of metabolic syndrome including overweight,abnormality of blood glucose and blood lipid,and hypertension.