The aim of the invention is to solve the problem that the electromechanical equipment is inconvenient to be protected when the electromechanical equipment is dehumidified, Disclosed is a moisture removing device for small electromechanical equipment, comprising an air collecting box, a heating rod, a through hole, an air guide cylinder, a horizontal tube, a connecting tube, a positioning rod, a connecting plate, a mounting rod, a motor, a rotary table, a pushing block, a pushing plate, a sliding rod, a guide ring, a coil spring, an end cover, a slide plate, a gasket, a support rod, a bottom plate, a collar, a blocking net, a holding cylinder and a cover. The device is reasonable in design, Simply uses the motor setup, so that the slide plate can be driven to slide back and forth, Completing the operation of blowing the mechanical and electrical equipment in the container, combining with the setting of the heating rod, intermittently ventilating the hot air of the mechanical and electrical equipment, thereby speeding up the drying treatment of the mechanical and electrical equipment, and facilitating the protection of the mechanical and electrical equipment, which meets the social needs, and is worth popularizing and using to the mechanical and electrical maintenance personnel.