AimTo detect the level of blood lipid, blood pressure and weight index and explore the relationship between those three indexes and Arteriosclerosis in High Altitude Polycythemia（HAPC）.MethodsThe physiology parameters such as blood pressure,weight,heart rate and blood lipid detection were performed at the early morning empty stomach condition in 86 HAPC patients and 200 healthy people in Geermud,Qinghai, 2800 meters above sea level,then the results were analyzed.Results（1）The level of TG, LDL and arteriosclerosis index were higher,while the level of blood HDL,ApoA1 and the ratio of ApoA1/ ApoB were lower in HAPC group than the control group.It has the significant difference(p<0.05).The relevance ratio of hypertriglyceridemia, hypercholesterolemia, combined hyperlipidemia, hypo-high-density lipoprotein cholesterolemia, were higher in HAPC group than the control group.The relevance ratio of hypertriglyceridemia was the highest in those high blood lipid group.It has the significant difference(p<0.05).（2）The level of weight,BMI and heart rate were higher in HAPC group than the control group.The relevance ratio of obesity and high bood pressure were higher in HAPC group than the control group.Hypertension is more common with increased diastolic blood pressure.It has the significant difference(p<0.05).ConclusionHAPC has those three atherosclerosis risk factors such as blood pressure, obesity, lipid disorders.It suggests the increased risk of atherosclerosis and associated diseases in HAPC.