Barrage information processing method, client and service platform

The invention discloses a barrage information processing method, a client and a service platform. The method comprises the steps of receiving the barrage information sent by the service platform and dynamically displaying the barrage information in the first output region of a first client for outputting first multimedia information according to a predetermined policy, wherein the barrage information is information to be displayed formed based on watching feedback information sent by the first client or a second client, and the watching feedback information is feedback information formed when a user watches the first multimedia information.