The invention belongs to the technical field of automobile components and provides an automotive electric appliance control method. The automotive electric appliance control method includes detecting electric quantity of a storage battery; controlling primary electric appliances, secondary electric appliances and tertiary electric appliances to turn off according to the electric quantity of the storage battery, and giving prompt signals; judging whether to start to charge the storage battery or not according to the prompt signals; judging whether charging the storage battery is started or not, and if yes, recording charging time and detecting the electric quantity of the storage battery; according to the electric quantity and charging time of the storage battery, judging whether to stop charging or not and controlling the prompt signals to cut off. The automotive electric appliance control method has the advantages that the primary electric appliances, the secondary electric appliances and the tertiary electric appliances are controlled to be turn on or off and whether the storage battery is charged or not are controlled according to the electric quantity of the storage battery; the electric quantity of the storage battery can be allocated reasonably, and the requirements of continuously load increase can be met without increasing power of an electric generator and capacity of the storage battery, so that production cost is lowered, fuel consumption is reduced and energy resources are saved.