A method, system and terminal for deleting a sent instant message in messaging communication have been disclosed. The method including: receiving from a first communication terminal, a delete request to delete a sent instant message which has been transmitted from the first communication terminal to a second communication terminal, wherein the delete request comprises an identification which identifies the sent instant message which is to be deleted; determining whether the sent instant message which is to be deleted has already been successfully forwarded to the second communication terminal; and if it is determined that the sent instant message which is to be deleted has already been successfully forwarded to the second communication terminal, forwarding the delete request to the second communication terminal to facilitate deletion of the sent instant message by the second communication terminal.