The search engine is not an actual tangible engine, but website data of all kinds existing on the internet. In other words, it¡¯s a system in which information on the web is collected and arranged and through which users make their queries. The system includes three parts: information collection, arrangement and user query. The search service is provided through catalog classification or whole article sorting. In 2007, search engine industry in China has gained dramatic high-speed development, creating milestone-like records one after another, which marks that search engine industry in China is stepping into completely prosperous period: