The utility model discloses an energy-saving tobacco curing device capable of recycling dehumidification waste heat of a curing barn, which comprises a moisture heat exchange device, a dry heat gas collection tube, a dry heat gas draft tube and a temperature regulation and control system of the curing barn, wherein the temperature regulation and control system of the curing barn is electrically connected with the moisture heat exchange device; a moisture channel of the moisture heat exchange device is connected with a dehumidification hole of a heating chamber of the curing barn; and the dry heat gas collection tube of the moisture heat exchange device is communicated with an air inlet of the heating chamber and/ or a gas circulation system in the curing barn by the dry heat gas draft tube. The energy-saving tobacco curing device is capable of fully recycling the heat in the moisture discharged by the curing barn and directly taking the heat as an auxiliary heat source of the curing barn or increasing the temperature of fresh air at the air inlet, so that the energy consumption of the heating chamber is reduced by about 20%; all the heat needed by low flame period of the curing barn can be met by the waste heat recycled under comprehensive regulation and control, so that the emission load of carbon monoxide can be reduced by 70-80%. Meanwhile, the temperature of the discharged wet hot gas is remarkably reduced, the environmental pollution is reduced, and the aims of saving energy and reducing emission can be achieved.