This invention discloses a method and a system for attaching information on a communication channel, in which, said system includes: an attached information management module, a user database, an attached information database and an information loading module and the management module receives information transferred by the information process center, picks up user data, compares the user data stored in the user database and judges if the user is a registered one, if so, it matches the attached information in the database to read the information to be attached on the information of a sending party after it is loaded by a loading module to be presented to the information process center then to be sent to a user of the receiving party, if not, the attached information management module submits the information of the sending party or error prompt to the information center to be sent to the user of the receiving party via network. |