The invention discloses a large-scale material transfer device for building, comprises a shell, wherein at least two guide rails are arranged on the side wall array of the shell, and a separating plate is inserted and installed in the guide rails; balls are uniformly arranged on the separating plate and a built-in storage box is arranged on the balls; lifting pushrods are installed on both sides of the shell, and a movable seat is driven and installed on the ends of the lifting pushrods. The large-scale material transfer device designed by the invention can effectively adjust the posture of the device in hoisting by adjusting the pushrods, so as to avoid the way in which an accident results from imbalance, the device is capable not only of passing through the side and top of the building material in a rapid state, Moreover, the building materials can be separated and transported through the partition board and the built-in storage box, so as to effectively avoid collision and wear between the building materials, and it is more convenient to add an additional protective layer, thus effectively improving the transportation efficiency and safety of the large-scale building materials.