Abstract: Objective To examine prevalence and behavioral risk factors of chronic diseases among residents in Jiangbei district of Ningbo city for prevention and control of the diseases.Methods A cross-sectional study was conducted with two stage random sampling to select 2 354 residents aged 15-69 years from 2 communities for a face-to-face questionnaire survey.Results Among the residents,the prevalence of chronic diseases was 27.2% and there were significant differences in the prevalence among the residents of different gender,age,education level,marriage status,occupation,whether consuming excessive salt,lacking physical exercise,and overweight.The Results of multivariate logistic regression showed that at the age of 35 years or older,retirement,and overweight were risk factors and female and lack of physical exercise were protective factors for chronic diseases.Conclusion Gender,age,occupation,lack of physical exercise,and overweight are important factors for chronic diseases among the residents in Jiangbei distric of Ningbo city.