The models of attitude movement were established in order to study the influence factors of ATEA(average torque equilibrium attitude) of the space station. The influence of the air torque on the ATEA(average torque equilibrium attitude) of the space station was analyzed. The models of dynamic and control of the space station were established. A typical proportion derivative controller was used. Groups of 24 ATEA were separately obtained under two conditions. The results show that the air torque exhibits a significant influence on ATEA. In order to keep the ATEA of the space station, periodicity of control torque need to be provided. The momentum unloading and accumulating effects of the space station induced by air torque cannot be neglected.