The invention discloses a blast capacity variable fluorine pump energy-saving type air conditioner and a control method thereof. The air conditioner specifically comprises an air conditioner box body,a fluorine pump system, a refrigerating system, a forced draught blower, a bypass system and an automatic control system, wherein the fluorine pump system and the refrigerating system are arranged inthe air conditioner box body, and the automatic control system is used for controlling the fluorine pump system, the refrigerating system, the forced draught blower and the bypass system to work. According to the blast capacity variable fluorine pump energy-saving type air conditioner and the control method thereof, fluorine pump system and the refrigerating system are used for carrying out cooling and dehumidification and temperature rising and heating on a part of blast capacity, the bypass system is used for carrying out treating the other part of blast capacity, and air is fed through a nozzle; and the fluorine pump system is used for carrying out pre-cooling temperature reduction and pre-heating temperature rising, the load of the refrigerating system is reduced, the power of a fluorine pump is greatly lower than the power consumption of a compressor, and the energy consumption can be reduced. The blast capacity variable fluorine pump energy-saving type air conditioner and the control method thereof are reasonable in design, high in efficiency, capable of saving energy, high in environmental suitability, high in adjusting precision, intelligence degree and safety and stable and reliable in running and conform to the energy saving and environmental protection policy advocated by China, non-blind area precise adjustment of outlet air conditions can be achieved, and a stableand reliable running environment is provided for various application occasions.