Abstract: A method of providing a membership service by a membership service providing server connected with a user terminal, wherein the method includes: a) receiving a membership service subscription request; b) receiving representative card information; c) receiving affiliated company selection information about an affiliated company; d) matching and storing the user information, the affiliated company selection information, and the representative card information; and e) providing the user terminal with at least one of mileage, a stamp, and a coupon provided by the affiliated company when receiving a membership service request through the representative card from an affiliated company server corresponding to the affiliated company selection information.

Abstract: A membership service providing server is connected with a user terminal and includes: a) receiving a membership service subscription request; b) receiving representative card information about a representative card used for the membership service from the user terminal and registering the representative card information; c) receiving affiliated company selection information about an affiliated company; d) matching and storing the user information, the affiliated company selection information, and the representative card information; and e) providing the user terminal with at least one of mileage, a stamp, and a coupon provided by the affiliated company when receiving a membership service request through the representative card from an affiliated company server corresponding to the affiliated company selection information.