Our country has entered the aged society, the health education in the elderly is imminent. The studies in the effects of aerobic exercise mode on the cardiovascular system in the middle-aged and elderly people will provide theoretical basis and practice mode. Research methods: 30 healthy people (aged 50-70) were selected to undertake 8-week exercise as the aerobic exercise model (45mins/day, 5times/week). Measured indexes such as cardiovascular functions, hemodynamics flow, blood fat and renin-angiotensin-aldosterone system (RAAs) before and after the exercise, and then analyzed and compared them by mathematical statistics. Research result: 1) Cardiovascular function indexes pulse rate (PR), pulse pressure(PP), systolic pressure(SP), diastolic pressure(DP), valid pump effort(VPE) of left heart, heart oxygen consumption volume (HOV) decrease more or less, while cardiac output(CO), stroke volume(SV), stroke index(SI), cardiac index(CI) is obviously higher than before (p<0.01). 2) There is no significant difference in hemorrheology indexes like thrombus formation lime (TFL), microcirculation strees time (MST), and erythrocyte aggregation index(VAI), while blood viscosity (ηb), blood reduced viscosity (ηr), fibringen (PFC), plasma viscosity (ηp), hematocrit (Hct) drop apparently (p<0.05). 3) Blood-lipoid indexes cholesterol (Ch), triglyceride (Tg), low density lipoprotein (LDL) gets lower after the experiment, while high density lipoprotein (HDL) is higher (p<0.01). 4) Angiotensin I (Ang I) is obviously lower than that before the experiment, but angiotensin II (Ang II) and aldosterone (Ald) has no significant differences. Research Conclusion: the aerobic exercise model of jogging plus broadcast gymnastics is beneficial for middle-aged and elderly people 1) improve their cardiovascular system function. 2) decrease the blood viscosity with a certain significance to prevent high blood viscosity syndrome (HVS) for them. 3) prevent the coronary atherosclerosis in them. 4) accelerate renal blood flow in them, reduce angiotensin I secretion, improve cardiovascular functions, strengthen cardiovascular compliance, prevent and reverse the risk of cardiovascular disease.