According to a research report, China's search engine market valued to 1.2 billion Yuan last 2004 year , 81% higher than that of 2003. The estimated value of 2007 is 5.6 billion Yuan. Search engine is the second option people use when they are online. Email service ranks first among these options. Among China's 94 million internet users, at least 60 million users choose search engine to find informations they wanted. The reason that pushes search engine market grow bigger and bigger is that a healthy relationship among the search engine company(the provider), the internet user and non-search engine company(who use search engine to promote their products and service) has been established. The search engine company provides internet users with free info-seeking service and attracts more and more people. The rapidly growing search engine users number gives non-search engine companies confidence to put more money on search engine marketing; Investment from non-search engine company supports search engine company to put new products and services to meet the demand of users. It is said that this win to win mode will make the market to go even further.