The invention discloses a method and a system utilizing a two-dimension code to advertise. The method utilizing the two-dimension code to advertise comprises the following steps: advertisement content stored on a service platform is related to the information of the corresponding two-dimension code, and the two-dimension code is released, an advertiser side scans the two-dimension code and analyzes the two-dimension code to obtain the information of the two-dimension code; an advertisement obtaining request is sent to the service platform according to the information of the two-dimension code; the service platform sends the advertisement content related to the information of the two-dimension code to the advertiser side and simultaneously sends an interactive form to the advertiser side; the advertiser side shows the interactive form to a user, receives user input, and then sends the interactive form to the service platform; and the service platform sends a data package containing rewarding information to the corresponding advertiser side, and the data package containing the rewarding information is represented to the user through the advertiser side. The method and the system utilizing the two-dimension code to advertise can improve the advertising effect of advertisements, and effectively reduce harassment of useless advertisements to the user.