In recent years, Prof. Shaofeng Wang has devoted himself to establishing a fully discrete dislocation lattice theory based on discrete lattice dynamics, deriving dislocation equations that can characterize the structure of dislocation cores and their properties, developing effective approximation methods for solving dislocation equations, and applying the new theory to dislocations in copper, aluminum, iron and other metals and alloys, semiconductor silicon, carbon nanotubes, graphene and other materials. The dislocation lattice theory determines the effect of material phonon spectra on the structure of dislocations and their physical properties, determines the effect of material generalized layer dislocation energy on the structure of dislocations, and can reveal complex processes and phenomena such as dislocation core reconfiguration and dislocation torsion. This has important theoretical implications for understanding the understanding of the macroscopic properties of materials such as ductility, brittleness and strength at the atomic and electronic microscopic levels. In the past decade, dislocation lattice theory has received three continuous grants from the National Natural Science Foundation of China, and more than 30 papers have been published in major international physics journals, and the research work has received attention and recognition from peers.