Fixing device for assembly type wallboard installation

The fixing device comprises a main wall body and an installation auxiliary assembly, the installation auxiliary assembly comprises a bottom plate and a side plate, the side plate is fixedly connected to one end of the upper surface of the bottom plate, a reserved groove is formed in the side plate, the upper surface of the bottom plate is fixedly connected with a protruding block, and the protruding block is fixedly connected with the main wall body. According to the assembly type wallboard installation device, the installation auxiliary assembly is arranged, the connecting plate on the installation auxiliary assembly is fixedly connected with the assembly type wallboard through the first bolt, and the threaded rod and the rotating shaft on the installation auxiliary assembly are driven by the motor to rotate, so that the assembly type wallboard is pushed to slide on the protruding block and the protruding steel bar; the fabricated wallboard is mounted on the main wall body, mounting is assisted through the d