The invention provides a communication switching method and device. The communication switching method comprises the following steps: determining a target
base station from all first base stations according to the information after obtaining
signal quality parameters of a source
base station,
signal quality parameters of each first
base station and load of each first base
station for source base stations and first base stations which are accessed into a core net based on a 5G mobile communication technology; and sending switching request to the target base
station, sending switching order information to the terminal after receiving switching request conformation information sent by the target base
station for indicating the terminal to switch to the target base station from the source base station, thereby realizing communication switching under the 5G mobile communication technology. In a communication switching process, switching request carries
service quality flow related information, so that the source base station and the target base station can adopt same
service quality flow related information to perform mapping of
service quality flow, and therefore, loseless switching of service quality flow can be realized in a process of switching the terminal to the target base station, and continuity and service quality of communication are improved.