Abstract: To Study the relationship between BMI and WHR and blood pressure,A total of 12,995 people over 40 years of age in rural China was surveyed.Height,weight,waist circumference,hip circumference and blood pressure were measured.The relationship betwween BMI and WHR and blood pressure were analyzed by dividing BMI and WHR into tertiles.Results:The average blood pressure level and the prevalence of hypertension of male and female are increased significantly with the increase of BMI(P< 0.01)as well as with the increase of BMI and WHR simultanceously(P<0.01).The average blood pressure and prevalence of hypertension did noth increase when WHR≥0.76(P>0.05),and this suggest that WHR≥0.80 may as a cut-off value for hypertension risks prediction.We believe that the combination of BMI and WHR is an effective indicator for the prediction of hypertension risks,and hypertension can be effectively prevented and controlled by controlling BMI and WHR.