Fresh air system control method and device, electronic device and computer equipment

The invention provides a control method and device of a fresh air system, an electronic device, computer equipment and a storage medium. The number of people in a target space where the fresh air system is located is detected regularly; according to the influence factor of the CO2 concentration in the target space, the current CO2 concentration, the fresh air CO2 concentration of the fresh air system and the preset target CO2 concentration, the current required fresh air volume is calculated, and when the current required fresh air volume is increased, a first required difference value between the current required fresh air volume and the historical required fresh air volume is obtained through calculation; and a first opening difference value between the current opening fresh air volume and the next-gear opening fresh air volume is calculated, and if the first demand difference value is larger than the first opening difference value, the fresh air system is controlled to conduct air volume adjustment on the