Control method of multi-split air conditioner, multi-split air conditioner and storage medium

The invention discloses a control method of a multi-split air conditioner, the multi-split air conditioner and a storage medium. The method comprises the steps that temperature difference data of a started indoor unit in a preset time period are obtained, and the temperature difference data comprise data corresponding to the temperature difference between the indoor temperature of the indoor unit and the set temperature; determining a load index corresponding to the indoor unit according to the temperature difference data; determining a target temperature according to the load index, wherein the target temperature is a target value required to be reached by a characteristic temperature for representing the heat exchange energy efficiency of the multi-split air conditioner; and the multi-split air conditioner is controlled to operate according to the target temperature. The invention aims to improve the indoor comfort and the energy-saving effect of the multi-split air conditioner. 本发明公开了一种多联机空调的控制方法、多联机空调以及存储