The invention relates to a method and a
system for adjusting air quality of high-rise buildings by virtue of natural conditions. The method comprises the steps of acquiring index data of air quality of a local area, detecting indoor and
outdoor air quality,
humidity and temperature as well as outdoor
wind power, transmitting detection data to a main
control system, working out an air
quality control strategy by the main
control system according to related data of various detections as well as the index data of the air quality of the local area, sending the air
quality control strategy to a local controller by the main
control system, and controlling a total heat
fresh air ventilator to start and stop ventilating by the local controller. The
system comprises various air quality detection devices, a ventilation and
air change device, the local controller, a
local area network and the main control
system, wherein the main control system is connected with an
air quality index publishing system. According to the system and the method, both the
indoor air condition and the outdoor air condition of the high-rise buildings are taken into account, existing facilities of the high-rise buildings are fully used, relatively ideal air at the best time is gathered, and the air quality of the high-rise buildings is controlled and regulated at low cost when the
air contamination is uncertain.