Abstract: Provided is a system for providing a targeting advertisement service in a social network, the system including: a database to store information associated with a distribution of a content in the social network; an analysis unit to analyze the stored information with reference to the database, and to verify a behavioral pattern or a matter of concern of each of users in the social network based on the analysis result; and an advertisement unit to provide each of the users with a targeting advertisement, based on the verified behavioral pattern or the matter of concern.