Abstract: Provided is a system and method for facilitating checking whether advertisement is performed effectively in an exposure area during an exposure time through a movable advertisement medium. The method is performed using an advertising agency device accessible to an advertiser device and a mobile terminal of a user who carries an advertisement medium. The advertising agency device receives an advertising option and advertising expense data from the advertiser device and provides advertising data according to the advertising option to the advertisement medium through the mobile terminal so that the advertisement medium outputs an advertising content corresponding to the advertising data. The advertising agency device determines an advertising validity which indicates whether the advertising content is output according to the advertising option and paying an advertising fee to an account of the user when the advertising content is determined to be output according to the advertising option.