PURPOSE: A content-centered service providing system with ultra peers and a method thereof are provided to stably supply a multimedia service by properly distributing traffic when providing a high-capacity multimedia service in a wireless environment. CONSTITUTION: A content storage unit(110) searches for contents corresponding to content names. A content request collecting unit(150) collects the content names. The content request collecting unit requests contents requested by a user to service providing device when a content providing message corresponding to the content names is received. [Reference numerals] (110) Content storage unit; (120) Content name generating unit; (130) P2P management server registration unit; (140) Content providing unit; (150) Content request collecting unit; (160) End terminal information collecting unit; (AA,DD) Contents; (BB) Contents search; (CC) Contents information; (EE) Contents request/contents location provision/contents; (FF) Contents request; (GG) Terminal information