A photovoltaic module heating device for finished product shipment of component heating box, comprising a device structural frame, an insulation board wrapped around the outer side of the structural frame to form a box body, and a support roller set inside the device structural frame. The support roller adjusts the speed by adjusting the motor, and photovoltaic modules are set on the support roller. Above and below the support roller, there are upper and lower reflection plates, and infrared heating tubes are set on the upper and lower reflection plates. The distance between the upper and lower reflection plates and the photovoltaic modules is adjusted by the upper and lower reflection plate height adjustment mechanisms. There is a dry burning electric heating wire at the top of the inner side of the device structural frame. Each support roller is connected to the roller drive motor through a chain to change the travel speed of the photovoltaic modules on the roller. The main heating is all radiation infrared heating tubes, By adjusting the distance between the reflective surface and the photovoltaic module through the upper reflector height adjustment mechanism and the lower reflector height adjustment mechanism, the present invention improves the accuracy of ensuring temperature stability and saves costs