The utility model provides a simple and easy solar drying device in passive form place of production for solve the dry problem of agricultural product, it includes solar energy air heat collector, drying cabinet and solar electric system, wherein be provided with the multilayer supporter in the drying cabinet, the supporter is fixed on the lateral wall of drying cabinet with the circuitous structure of S -shaped, is equipped with gas outlet and hot -blast import respectively in the top and the bottom of drying cabinet, wherein, the gas outlet sets up the exhaust fan, exhaust fan and solar electric system electric be connected of setting at the drying cabinet top, hot -blast import pass through swing joint spare with solar energy air heat collector is connected, solar energy air heat collector air inlet and atmosphere intercommunication. The utility model discloses goods shelves have carried out unique crossing design in the well drying cabinet, can make get into the drying cabinet hot -blast rise with the S type, can each material of locating of intensive drying, and it is dry even.