The invention discloses a control method, device and system of an air-conditioner system of a track vehicle and the track vehicle. The control method comprises the following steps of in the travelling process of the track vehicle, obtaining parameter values of a plurality of PMV parameters, and obtaining PMV index regions determined according to travelling regions of the track vehicle; inputting the parameter values of the PMV parameters to PMV equations corresponding to the PMV index regions, so as to obtain the PMV values of the track vehicle in different travelling regions; and according to the PMV values of the track vehicle in different travelling regions, adjusting the air conditioner of the track vehicle. According to the control method disclosed by the invention, the technical problem that in the prior art, only the temperature of the air conditioner system of the track vehicle is considered, and the influences of other factors on somatosensory comfortableness of passengers are not considered, so that the somatosensory comfortableness of the passengers is influenced is solved.