Abstract: Objective To knowthe prevalence of hypertension and it's influential factors in residents of Youyu county,Shanxi province.Methods Totally 3 502 residents aged ≥ 18 years were selected with random cluster sampling and investigated with questionnaire interview,physical examination and biochemical test.Results There were 889 hypertension cases with the prevalence and adjusted rate of hypertension of 25.4% and 19.3%,respectively.There was a difference in the prevalence rate of hypertension between male and female.The rate of awareness,treatment,and control of hypertension was 51.2%,15.5%,and 8.1%,respectively.The hypertension prevalence increased along with the increment of age,which was higher in the female than in male for the residents over 60 years old.After adjusted for age and gender,overweight or obesity,abdomen obesity,alcohol drinking,glucose metabolism abnormality,hyperlipidemia,and family history of hypertension were all related to hypertension.The results of multivariate unconditional logistic regression analyses showed that age,overweight or obesity,abdomen obesity,alcohol drinking,glucose metabolism aboormality,hyperlipidemia,and family history of hypertension were risk factors of hypertension.Conclusion The prevalence rate of hypertension in the residents of Youyu county is high and relates with many factors.The comprehensive prevention and control for hypertension should be conducted.