Abstract: A transmission stretching truck box covering device with heating control, includes: a clutch-type drive gear box, wherein the drive of the transmission motor drives the electric roller shutter to operate, and the motor is communicatively connected to a roller shutter control board; an electric roller shutter, one end of which is connected to the clutch-type drive gear box, the other end of which is fixed in a driven bearing; a roller shutter cover, which stretches along the extension direction of a side rod; a side rod, which is a support frame in which the roller shutter cover stretches; wherein the inner side of the side rod is a guide rail in which the roller shutter cover stretches, and the outer side is attached to the two sidewalls of the open top cover in the truck box.