In this embodiment of this application, the communications apparatus (for example, the first network device) sends the configuration information to the terminal device. For example, the first network device sends the configuration information to the terminal device when link communication quality is relatively good, so that a success rate of sending the configuration information can be ensured. Further, the terminal device determines the target cell based on the configuration information, and performs random access to the determined target cell, to complete a handover procedure, thereby improving a handover success rate.
Optionally, the conditional handover configuration information is used to configure a first measurement object and a handover condition threshold, where a measurement result of the first measurement object and the handover condition threshold are used to determine whether a trigger condition of a conditional handover is satisfied.