The invention provides aerated concrete block packaging equipment, and belongs to the technical field of aerated concrete block packaging. The aerated concrete building block packaging equipment comprises a conveying frame, a conveying belt and a stacking mechanism, the conveying belt is installed in an inner cavity of the conveying frame, building blocks are placed on the surface of the conveying belt, the stacking mechanism is installed on the surface of the conveying frame and comprises a support, a transfer plate and a toothed plate, and the support is fixedly installed on the surface of the conveying frame. According to the building block stacking device, the stacking mechanism is arranged, a first motor drives a transfer plate to move leftwards, building blocks are moved to the surface of a containing base to be stacked, when the transfer plate moves leftwards, a baffle is driven to move upwards to block the building blocks, meanwhile, a first supporting rod drives an abutting plate to move synchronously, the next set of building blocks are tightly attached together, gaps between the building blocks are reduced, and the stacking efficiency is improved. The stacking quality is improved; and the toothed plate can be driven to move through the electric telescopic rod, so that the transfer plate is driven to rotate by 90 degrees, the building blocks are stacked in a staggered joint mode, and the stacking stability is improved.