Provided are a cell handover method, a network node and a terminal device. The method includes that: a target node sends a first resource to a terminal device, the first resource being used for sending or receiving data after the terminal device is handed over to the target node. In implementation of the disclosure, the first resource is carried in a handover command or a handover acknowledgement, the terminal device can directly send or receive data on the first resource after the terminal device is handed over to the target node, thereby reducing a delay and improving user experience.