The invention provides a control method for an automobile air conditioner. The control method for the automobile air conditioner comprises the steps that the automobile air conditioner is controlled to work based on navigation map location transformation, wherein location transformation means transformation from a start location to a destination in a navigation map when an automobile runs and transformation from the start location to the destination is based on a distance, close to the destination, of the automobile; when the distance is at a preset value, a control module turns off the automobile air conditioner; and a refrigerating system is turned off while an air outlet system operates normally after the automobile air conditioner is turned off. By adoption of the control method for the automobile air conditioner, both the effect of saving energy and a positive effect on human health and sanitation can be achieved, and the control method for the automobile air conditioner has quite high market value.