The construction of “Xinguangzheng Taiwan Blue Sand” new lightweight composite wallboard is anchored by upper, lower and middle staggered seams. The concave-convex wood joint structure on the side of the board makes the wallboard have strong integrity and stability, and the overall strength is high. The anti-cracking degree can be designed at 8 degrees, which greatly improves the earthquake resistance and safety performance of the building. Due to the industrialized production, the construction period is shortened with high civilization and efficiency. It also has the advantages of convenient construction, good decoration, convenient installation of pipelines and other features. Compared with other materials, its advantages of light weight ad thin body greatly reduce the load on the foundation, beam, column and other structure. Reducing the structure cost, the safety performance is improved, and the price performance ratio is also raised. The convenient and efficient installation reduces the overall cost and greatly shortens the construction period.