Because of the traditional teaching mode is not satisfied with the status quo, and that the network teaching based on WEB technology becomes the modern education technology reform and development direction. Network technology with its advanced management method, means and work efficiency to a new development paper based on the genetic algorithm for background extraction systems, JSP + Servlet Hibernate, Ajax technology, network teaching, research and firstly introduces the network teaching, through the analysis of the characteristics of the function, extraction system design for its basic functions required page, the system design for administrators, teachers and students, and provides the question out, practice, online exchanges online, complete functions, page basically can satisfy the requirement of students and : genetic algorithms, Question system, Page design, Software testing