The invention belongs to the technical field of building material lifting devices and provides a lifting assembly for building materials. The lifting assembly is characterized by comprising a bottom plate, steering devices and fixed motors, wherein eight motor mounting grooves are symmetrically formed in one end of the bottom plate, the other end of the bottom plate is provided with shaft through holes which are symmetrical relative to the motor mounting grooves, the fixed motors are fixedly arranged in the motor mounting grooves, motor shafts are arranged on the fixed motors in a controlled manner, the steering devices are fixedly arranged on the motor shafts and comprise steering blocks, motor shaft through holes are formed in the steering blocks, and the motor shafts are located in the motor shaft through holes and are fixedly connected with the steering blocks. According to the lifting assembly for the building materials, by means of the designs of the bottom plate, the steering devices and the fixing motors, after a pipe is clamped and fixed through clamp sliding blocks, the fixing motors control the steering blocks to rotate, so that the placing mode of the pipe is changed, in this way, the pipe can be hoisted in a vertical state, the stability of the pipe can be kept in the hoisting process, and the pipe is prevented from falling due to unbalance.