Abstract: The present invention provides a method and device for processing a communication event of a terminal and the terminal. The terminal includes a plurality of systems, and the method for processing the communication event of the terminal includes: upon the receipt of a communication event, obtaining information of an initiator of the communication event; according to the information of the initiator of the communication event, determining the storage location of the information of the initiator in the plurality of systems; and when the information of the initiator is determined as being stored in any one of the plurality of systems, switching a current running system of the terminal into any one of the systems to process the communication event.

Abstract: A dual system-based communication method comprises: in a terminal having dual operating systems, binding information of each contact to a corresponding operating system; and in the situation that the dual operating systems operate simultaneously, when a communication is received, conducting communication in an operating system corresponding to a contact initiating the communication request. According to the present disclosure, basis data is isolated between two operating systems on the basis of contacts, information of each contact is bound to a corresponding operating system, and when a communication request is received, communication is conducted in an operating system corresponding to a contact initiating the communication request, so that an incoming call from a contact of a secure system is preferentially switched to a secure operating system for communication and it is ensured that relevant information is isolated and stored in the secure system.