Lattice engineering plays a crucial role in the fields of material science and device design. By precisely constructing lattice-ordered states, superlattice states, lattice defect states, etc., it becomes possible to effectively build materials with topological order and customize the macroscopic lattice architecture to enhance their functionality in areas such as optics, electronics, and magnetism. Specifically, materials with topological order based on the intrinsic periodicity of the lattice exhibit unique band structures that result in high conductivity, lower energy loss, and special quantum Hall effect during electron transport. And superlattice materials assembled through spatial organization and longitudinal rotation, such as the Moiré pattern series, can provide new avenues for improving the performance of optoelectronic sensors and photonic devices. While lattice defects enable the realization of localized electronic states, defect spin states, and other special effects, facilitating the design of magnetic control and magnetic storage devices.