The invention discloses a traditional Chinese medicine energy-saving drying device which solves the problems that in the prior art, energy is wasted, the agricultural product quality is likely to be lowered, the waterproof and fireproof performances of a power line are poor, aging is likely to be caused, and therefore potential safety hazards are generated, and the drying efficiency is low. The device comprises a dryer body provided with a supporting frame, a rotating shaft, two or more transverse plates perpendicularly fixed to the rotating shaft at equal intervals for containing agriculturalproducts, and a condenser; a heating wire is arranged inside the transverse plate, a power line is arranged inside the rotating shaft, a vacuum pump is connected to the condenser, and a driving motoris arranged at the bottom of the dryer body; a solar cell panel is arranged at the top of the dryer body, a power control box is arranged at the outer side of the dryer body, and a solar controller,a solar storage battery, a microprocessor, a solar power panel and a voltage stabilizer are arranged inside the power control box; a temperature sensor and a humidity sensor are arranged on the innerwall of the dryer body. The device saves energy, is environmentally friendly and high in drying efficiency and can effectively eliminate potential safety hazards.