Backlight platform lifting device for substrate

A backlight platform lifting device for a substrate is used for jacking up the substrate. The backlight platform lifting device for the substrate comprises a base, a backlight module arranged on the base, a light guide plate arranged on the base and located above the backlight module, and a driving table arranged on the base and located below the backlight module. The backlight module is provided with a circuit board and a plurality of light-emitting elements arranged on the circuit board, the driving table comprises a driver and a plurality of jacking supports driven by the driver to move up and down, and each jacking support can pass through the backlight module and the light guide plate when being jacked up by the driver; therefore, the substrate which is horizontally arranged on the light guide plate is jacked upwards, so that the substrate can be turned over and the like by automatic mechanical equipment. Therefore, the device can be applied to automatic production, and can be used for automatically carr