In the present disclosure, a processing method for communication information of a terminal, a processing device for communication information of a terminal, and a terminal are provided. The terminal includes a first system and a second system. The processing method for communication information includes: acquiring information of an initiator of communication information when the communication information is received; and processing the communication information in the first system or the second system according to attribute information of the information of the initiator. By means of the technical solution of the present disclosure, on one hand, a user can independently set a system for processing communication information, thus operation experience of the user can be improved. On the other hand, communication information from important contacts can be set to be processed in the safe system, which can avoid leakage of the communication information from the important contacts, and effectively ensure safety of