The invention discloses an automatic tile sticking device for building construction. The automatic tile sticking device comprises a bending plate connected with a roller, one end of the bending plateis fixedly connected with a U-shaped frame, the U-shaped frame is internally and rotatably connected with a threaded rod, the U-shaped frame is connected with a power mechanism, a siding block sleevesthe threaded rod in a threaded mode, the sliding block is connected with the U-shaped frame through a limiting mechanism, a platform plate is arranged at one end of the sliding block, the platform plate is fixedly connected with the sliding block through a cross rod, the two ends of the platform plate are fixedly connected with connecting plates, and the opposite sides of the two connecting plates are fixedly connected with fixed blocks, and sliding rods are fixedly connected between the two fixed blocks and the platform plate. According to the automatic tile sticking device for the buildingconstruction, the height of tile sticking can be adjusted according to needs, adaptability of the tile sticking device is greatly improved, the intensity of labor is reduced, the occurrence of dangersis reduced; and tiles needing to be stuck are fixed and stuck, and the sticking efficiency is improved.