A transportation control unit (TCU) switching method includes receiving a first device message of a first device, determining a first location of the first device based on the first device message, and when the first location of the first device is in an information exchange area, sending the first device message of the first device to a second TCU, and when the first location of the first device meets a first preset condition, handing over the first device to the second TCU. In the present disclosure, the information exchange area is set, and a device message from an electronic device in the information exchange area is synchronized to a TCU to be obtained after switching from a TCU existing before the switching.