LaTeX is an international typesetting system widely used in writing and editing documents of teaching and scientific research work. It was originally developed as an English oriented automatic system, but it is now possible to identify Chinese by developing designs. The main feature of LaTeX is the ability to quickly process complex mathematical formulas and tables with simple statements. Besides, LaTeX specifies the hierarchy of whole article, users can process each hierarchical structure at one time, and directly generate stable PDF documents. LaTeX, due to its stable and intelligent layout function, plays more and more important role in the exchange and cooperation of international teaching and research area.