The twice loading automation system is the key equipment for the production of high-grade wall materials automation, and it is also the equipment which is widely used in the production of high-grade wall materials in developed countries. This system adheres to the design idea of COSMEC Italy, which owns advanced technology, high degree of automation level and high stability. The system consists of green brick cutting, grouping and loading on pallet, pallet transfer, pallet temporary storage, pallet loading and unloading, dry brick unloading from pallet, grouping, spacing and setting etc. This entire system is controlled by high-end PLC, which links each intelligent unit through PROFIBUS, and achieves the automatic operation of data setting or adjustment through industrial computer. This system is suitable for the production of both various common wall materials and high-grade wall materials.