Device for replacing and installing curtain wall stone

The utility model relates to the technical field of curtain wall engineering, in particular to a device for replacing and installing curtain wall stone, which comprises a ladder truck working platform and a hoisting and installing device arranged on one side of the ladder truck working platform, and the hoisting and installing device comprises a hoisting system and a square steel sleeve frame. The hoisting system is fixed on one side of the working platform of the ladder truck through a square steel sleeve frame, and the square steel sleeve frame comprises a fourth square steel, a fifth square steel, a sixth square steel, a seventh square steel, an eighth square steel, a ninth square steel and a supporting sleeve frame. Other equipment does not need to be additionally adopted to hoist the stone, so that the mechanical investment is reduced; the movable pulley block is fixed on the device, the manual operation weight can be reduced to 1/3 of the stone weight, the personnel carrying weight is reduced, the opera