Disclosed is a control method of controlling an air conditioning system. The control method comprises steps of obtaining plural adjustment parameter groups of each of plural air conditioners contained in the air conditioning system; acquiring at least one desired environmental parameter of each of one or more control targets; selecting, based on the desired environmental parameters, one from the plural adjustment parameter groups of each of the plural air conditioners to serve as a target adjustment parameter group of the corresponding air conditioner; and respectively transmitting the plural target adjustment parameter groups to the plural air conditioners, so that the plural air conditioners respectively set their adjustment functions according to the plural target adjustment parameter groups.