The invention relates to the technical field of heating and ventilation engineering, in particular to a heat exchange structure and an air energy intelligent defrosting system.The heat exchange structure comprises an air heat energy pump and a temperature sensor, the air heat energy pump comprises a shell and a heat exchanger, cooling fins are installed on the outer wall of the heat exchanger, and the temperature sensor is fixedly installed on the inner side of the upper end of the air heat energy pump; a water spraying pipe is fixedly installed on one side of the upper end of the air heat energy pump, and one end of the water spraying pipe is inserted into the inner side of the upper end of the air heat energy pump and fixedly provided with a water spraying head. Due to the fact that hot water continuously flushes the heat exchanger of the air heat energy pump, the heat exchanger of the air heat energy pump can fully absorb energy in the hot water, the defrosting purpose is finally achieved, the defrosting time can be effectively shortened, the heating time is greatly prolonged, the overall heating capacity of an air energy heat exchanger unit is improved, energy consumption is reduced, and no potential safety hazards exist.