The invention discloses a movable welding rod tray structure. The movable welding rod tray structure comprises an oven, a conveyor belt and a tray. A transfer-in port is formed in the lower end of one side of the oven while a transfer-out port is formed in the upper end of the other side; the conveyor belt is connected to a first gear, a second gear and a third gear; the second gear is arranged at the transfer-out port of the oven; a transfer-out device is arranged on the outer side of the transfer-out port of the oven; the third gear is arranged at the transfer-in port of the oven; a gravity induction device is mounted on the third gear; a transfer-in device and a motor are arranged on the outer side of the transfer-in port; a wheel is in rolling connection to the conveyor belt; the tray is connected to the upper side of the wheel; a heating element and a side plate are arranged on the tray; a groove is formed in the side plate; and a heat-isolating membrane is arranged on the side plate. The tray can be automatically controlled to move and the electric heating element to heat by means of the gravity induction device, so that the welding rod drying time is shortened, the efficiency of the whole welding rod processing streamline is increased, and the manpower is saved.