Abstract: ObjectiveTo investigate the prevalence of dyslipidemia in population aged 20 to 74 years in Dingxi，and analyze the risk factors in a basis for clinical intervention. MethodsA total of 1 702 participants 20 to 74 years old living in the local residence for at least 5 years were selected using a stratified cluster and random sampling design. All subjects completed a questionnaires survey，immediately following a physical examination and laboratory test. The prevalence of dyslipidemia was assessed according to diagnostic criteria，namely Chinese adult dyslipidemia prevention guideline，and the risk factors were analyzed. ResultsThe overall prevalence of dyslipidemia in Dingxi was 37.0%，the prevalence in men was higher than that in women(44.1% vs 30.8%，χ2=27.86，P=0.00). The prevalence of elevated triglycerides，elevated total cholesterol，elevated lowdensity lipoprotein  and low highdensity lipoprotein cholesterol were 23.0%，4.0%，16.5% and 4.5%， respectively. Gender and obesity were the risk factors for dyslipidemia. ConclusionThe prevalence of dyslipidemia in Dingxi is high，especially in men.  Gender and obesity are the main risk factors for dyslipidemia.

Key words: dyslipidemias；epidemiological survey; , risk factors