The information retrieval language provides a basis for Internet information organization and retrieval. But along with the rapid development of the Internet, network information grows with explosion and the users' demands of information become diversity. The information retrieval language is put forward to new requirements. The emergence of natural language to the network information retrieval no doubt brings new vitality, but also brings new problems, that is, how the natural language to be efficiently used in the network information retrieval. By analyzing the linguistic characteristics of natural language, combined with information retrieval in network environment's new demands, this paper summarizes the natural language development system in network retrieval, thus writer finds that after control is the main direction of natural language applications, and it gives new advices to specific network applications.