Air conditioner electric cabinet heating control method and air conditioner

The invention relates to the technical field of air conditioners, in particular to an air conditioner electric cabinet heating control method and an air conditioner, and aims to solve the problem that an existing heat pump air conditioner cannot work normally in an ultralow-temperature environment. The air conditioner comprises an electric cabinet and a heating device, and the heating device is arranged to be capable of heating the electric cabinet; the control method comprises the steps that the outdoor unit receives a starting instruction; the heating device is controlled to operate at the set power until the box body temperature of the electric control box reaches the target box body temperature; if the start-up attempt fails, a first temperature value is added on the basis of the last target box body temperature to serve as the target box body temperature of the next time of start-up attempt; and the temperature of the target box body is gradually adjusted until the outdoor unit is normally started. And a