The present invention relates to an energy-saving drying device which comprises a box body, a heating box, a ventilating wind chamber, a fan, ventilation holes, a heating chamber and drying frames. The heating box is disposed on the lower side of the box body, and the ventilating wind chamber is arranged on one side of the box body the ventilating wind chamber is isolated from the box body through a heat insulation plate, the ventilation holes are formed between the ventilating wind chamber and the box body, the fan is positioned on the outer side of the ventilating wind chamber and connected with a motor a door is arranged on the front side of the box body, the plurality of drying frames are positioned inside the box body, the heating chamber is disposed on the lower side inside the box body, and an open structure is positioned between the heating chamber and the box body. The energy-saving drying device is simple in structure, low in manufacturing cost, good in drying effect and high in efficiency, saves labor, and is favorable for product popularization. FIG. 2
