Abstract: ObjectiveTo find the difference of related behavioral risk factors between people with and withouthypertension and the relationship between their knowledge and behavior.MethodsUsing data from Shanghai Behaviroal Risk Factor Surveillance System(BRFSS)which conducted monthly household interview with 9 600 respondents,descriptive analysis and canonical correlation analysis were done.ResultsSignificant differences in some factors were shown between people with and withouthypertension.Compared with those withouthypertension,more hypertensives had correct choices of knowledge on hypertension control.The rates were significantly higher among hypertensives of ex-smoking(6.96%),physical exercise (51.14%),over-weight(38.04%)and excessive salt-intake(23.49%)than those among non-hypertensives,respectively of 3.41%,40.52%,16.69% and 21.19%.On the contrary,the rates were significantly lower among hypertensives of current smoking(24.18%),drinking(28.01%)and sedentary lifestyle(23.16%)than those among non-hypertensives,respectively of 30.62%,33.27% and 26.27%.The results of canonical corrleation analysis presented the correlation between hypertnesion-related knowledge and behaviors.ConclusionConcerns of hypertension control program should be given to oriented strategies.