User terminal, advertisement providing system and method thereof

The advertisement providing system is provided. According to various embodiments of the present invention, the advertisement providing system comprises: a first server to generate and store a user interest model based on a behavior history information of a user terminal and an interest advertisement selection condition inputted by a user; a second server to generate and store a target user attribute module based on an advertisement information and a target user selection condition supplied from an advertisement provider; and a third server when a user information is transmitted from the user terminal, to search the user interest model and the target user attribute model based on the transmitted user information, and recommending an advertisement associated with the searched model.