A printer with a web server embedded therein and a printing method thereof are provided. The printer includes a web server which generates a web page, transmits the web page to a user's web server terminal, and receives print data input in the web page by the user and a printing unit which converts the print data received by the web server into printable data. The web server includes a web page item setting unit which automatically establishes selection categories and items for each of the selection categories, a web page generation unit which generates a web page according to the selection categories and the items for each of the selection categories and a web page outputting unit which transmits the web page to the user's web server terminal via the Internet. Accordingly, it is possible to print data which is input by a user using a web page provided by a web server installed in a printer, without a printer driver or an application program.