Abstract: Objective To study the epidemiological tendency and risk factors of chronic disease on Beijing population.Methods An investigation in Beijing urban districts was conducted in a cross-sectional survey.A total of 15 000 permanent residents aged 15-69 years as a sample was randomly interviewed.Results (1)The chronic disease prevalence rate arrived at 35.90%(standardized is 24.78%),of which the male was 33.61% and female was 37.92%.The prevalence for female was higher than that of male(P<0.001).(2)Cigarette smoking rate was 31.61%,alcohol usage was 11.41%,overweight and non-activity rate were 31.45% and 33.90%.(3)Using multiple regression,age,gender,education,cigarette smoking,alcohol usage,overweight and non2activity were significantly associated with chronic disease(P<0.001).Conclusion The level of chronic2disease incidence and risk factors is high in residents of Beijing.Countermeasure should be strengeed soon.