1. A visited website search system searching a website visited by a user, the system comprising: a mini web server established in a local computer, receiving a search command for the website visited by the user from a web browser according to the HTTP protocol, and providing the web browser with a web document type search result; a search unit generating a search result by searching a website, corresponding to a query which is included in the search command, among the website visited by user; and a web document generation unit transforming the search result into the web document type search result.