The utility model discloses a high temperature resistant fan comprises motor, impeller device, transmission shaft and the bearing frame of installing on the frame, and the transmission shaft is hollow transmission shaft, the inside cavity of hollow transmission shaft, it has a plurality of air intakes to open on the axis body, the air outlet, the air outlet is seted up on being close to the axis body wall of impeller device one end, hollow transmission shaft passes the bearing frame and connects motor and impeller device, in operation, then the motor rotates, it rotates to drive hollow transmission shaft, inside hollow transmission shaft is gone into from air inlet to the air of rotatory in -process around hollow transmission shaft, go out from the air outlet swift current again, the process has experienced inside the hollow transmission shaft whole piece cavity, form the circulation of air current, thereby take away the epaxial high temperature of transmission, reach the cooling effect, make the enough low so that the biggest temperature that can can not bear above the motor and damaging of temperature that passes to the motor.