The invention discloses an intelligent temperature and humidity control method for a closed circulation heat pump tobacco curing barn, which comprises the following steps of: (1) starting a closed circulation heat pump system, and setting a target dry bulb temperature Tdset and a target wet bulb temperature Twset, (2) detecting a dry bulb temperature and a wet bulb temperature in a tobacco loadingchamber, and comparing the dry bulb temperature and the wet bulb temperature with the target dry bulb temperature Tdset and the target wet bulb temperature Twset to realize starting and stopping of acompressor and switching control of heating and dehumidifying modes. In combination of control on auxiliary electric heating equipment, the compressor starting dry bulb temperature control amplitudedifference A1, the compressor stopping dry bulb temperature control amplitude difference A2, the compressor wet bulb temperature control amplitude difference A3 and the electric heating starting dry bulb temperature control amplitude difference A4 are creatively combined, and thus the compressor can be reasonably started and stopped and can be switched between the heating mode and the dehumidifying mode, the temperature and the humidity of the curing barn are ensured to be matched with the target temperature and the target humidity, the temperature and the humidity are both considered, the control effect is good, and high market application and popularization prospects are achieved.