The invention discloses a traditional Chinese medicinal material oven. A heat conduction piece is arranged inside an oven body; a heating boiler is connected with the heat conduction piece through a water inlet pipe; an opening and closing door is arranged on one side of the oven body; an observation window and a display panel are arranged on the opening and closing door; an air purifier and a temperature sensor are further arranged inside the oven body; the air purifier comprises a purification barrel; a turbofan is arranged in the purification barrel; an adsorbing layer is further arranged on the inner wall of the purification barrel and comprises a primary filtration layer and a secondary filtration layer; and the water inlet pipe and a water return pipe are coated with heat-insulatinglayers. According to the oven, the heat conduction piece is adopted for heat transfer, even heating is realized, the burnt phenomenon can be avoided, the drying speed is high, and the working efficiency is high; and meanwhile, the air purifier is arranged, air inside the oven body can be purified, and thus the oven is time-saving, labor-saving and relatively high in practicability.