The drying oven is applicable to the drying, baking, waxing, sterilization and curing of articles in enterprises, scientific research institutes, colleges and universities, medical and health laboratories and other laboratories. The drying oven is made of high-quality cold-rolled steel plate whose surface is treated by electrostatic spraying technology, which is beautiful and generous in shape, and corrosion resistant and durable. The stainless steel workroom has circular corners. The side wind plate and the bottom heating cover can be disassembled, which is easy to clean and durable. PID digital intelligent temperature controller with overtemperature alarm and time setting function. The structure of heater and fan is reasonable, and they are placed at the lower part of the workroom. After reaching the temperature, the circulating fan can be turned off, so that the powder articles will not be blown away after drying. The observation window is equipped as standard, which is convenient to check the experimental status at any time.