Fabricated building laminated slab aluminum alloy formwork supporting device

The invention discloses an assembly type building laminated slab aluminum alloy formwork supporting device which comprises a base, a plurality of telescopic supporting legs are connected to the bottom of the base, and a photosensitive plate is arranged on the upper surface of the base; the lower end of the telescopic rod is vertically arranged on the upper surface of the base, the middle of the telescopic rod is connected with a suspension rod, the suspension rod is connected with a plumb bob through a lifting rope, the plumb bob is provided with a laser transmitter, and the laser transmitter corresponds to the photosensitive plate up and down; the controller is used for acquiring the light sensing position of the laser emitted by the laser emitter on the light sensing plate and judging whether the light sensing position is within a preset range or not; and the alarm is used for sending out an alarm signal when the photosensitive position is not in a preset range. When the perpendicularity of the supporting d