The invention discloses an air total heat recovery fresh air system which comprises an outdoor exhaust pipe, an outdoor air inlet pipe, a fresh air side wheel type filtering device, an exhaust side wheel type filtering device, a wheel type air total heat recovery heat exchanger, a rotating shaft, a wheel type shell, a fresh air pipe, an exhaust air pipe, an indoor air feeder, an indoor induced draft fan and a rotating shaft partition plate. According to the wheel type air total heat recovery heat exchanger, the cold, heat and water vapor of indoor exhaust air and outdoor fresh air are collected through rotation and a heat and humidity exchange coating. Due to the fact that the indoor exhaust air and outdoor fresh air alternately and reversely pass through the wheel type air total heat recovery heat exchanger, the heat and humidity exchange coating can collect and release the cold and heat quantity of air and water vapor through the temperature difference of the indoor exhaust air and the outdoor fresh air and the water vapor partial pressure difference, heat and humidity exchange can be carried out, and sensible heat can be recovered. And meanwhile, latent heat can be recovered, so that total heat recovery is realized.