Abstract: Objective:This paper explores the correlation between O2max and function of resting heart and lung,and compare the difference in participants of different O2max level between O2max and function of heart and lung.Method:Testing 66 female college students'(age:20±6,BMI:20.88±1.32) O2max,Cardiac output,and lung function.Dividing the participants into two groups(normal or less than normal)based on the testing results.Conducting Independent-Samples T Test on each groups.Results:1)There is a significant correlation between O2max(ml/kg/min)with VE(P<0.01),and the respiration quotient(P<0.05)and the lungs breathing vibration intensity(P<0.05).There is no significant correlation between O2max(ml/kg/min)and the cardiac output;2)There is no significant difference between the participants' height,weight and BMI respectively(P>0.05);3)The ventilation volume of the“below-average”group is significantly lower than the“normal”group while the respiration quotient of the former group is larger than the latter one's(P <0.01);4)There is no significant difference between the two groups' indexes of Cardiac output,the lungs breathing vibration intensity and QLD(P>0.05);5)The MET,QLD and EVP of the participants in the “below-average”group,to some extent,fluctuate with small range and lack amplitude.Conclusions:1) O2max is greatly influenced by the ventilation volume and is positively correlated with the lungs breathing vibration intensity.However,it is uncorrelated with the cardiac output in a static situation;2)The depth of respiration of the “normal”group(in sports)is significantly higher than the“below-average”group,which is possibly due to a better oxygen utilization in metabolism and energy supply;3)Participants with different O2max levels show no significant difference of heart function in a static situation,suggesting that participants of the“below-average”group didn't lose on the " starting line";4)Participants of the“below-average”group lacks advantage in terms of the overall Aerobic capacity,which +also seems to affect their cardiopulmonary function when doing sports.