Intelligence of humankind mostly includes five parts: the ability of observe, the ability of memory, the ability of practice, the ability of thought, the ability of imagine ...etc, that are the total of the mentality. At this paper, the intelligence behavior processing the data book index is discussed. The process searching data and information in Internet is similar as data book index. And so there are five intelligence behaviors in search engine: fell behavior, memory behavior study behavior, thought behavior, comprehend behavior. The work process of search engine will divide into four stages: classifying web page, confirming a scope of information searching, crawling web pages in internet, and filtrating the result web pages.