In order to study the thermal comfort of human body under different air distribution in the crew cabin and find out a law of influence of intake parameters on human thermal comfort, taking the flow field results with nine intake schemes being calculated and imported into TAITherm as environmental parameters,the thermal comfort analysis is made. At the same time, two indexes of mean facial air age and energy utilization are introduced to evaluate the air distribution in the crew compartment more comprehensively. The results show that the total amount of air intake has the greatest effect on the thermal comfort and average facial air age of the three occupants, and the inlet temperature of No.1 port has the greatest effect on the energy utilization rate. In consideration of the three evaluation indexes in thermal comfort, facial average air age and energy utilization of the three occupants, it is found that the three indexes perform well and the combination of inlet air parametersis the optimal when the total air intake is 1 800 kg/h, the inlet temperatures of No. 1 and No. 2 are both at 22 ℃, and the inlet air ratio of No. 1 and No. 2 is 6∶4. 