Method and device for interaction of in-station messages with out-station messages

The invention provides a method and a device for interaction of in-station messages with out-station messages. The method includes: detecting a target receiver of currently transmitted in-station messages; when the target receiver is not a system internal user, invoking a pre-installed API (application program interface) of the target receiver to transmit the in-station messages; and enabling the target receiver to organize the in-station messages according to a preset format. By the aid of the method and the device, users can achieve message intercommunication with other mail systems or social network stations by the aid of the in-station messages, and accordingly network resources are saved while communication efficiency of the users is improved.