Priority-based link scheduling method and device

The invention provides a priority-based link scheduling method and device. A message type of each message is received and confirmed. Whether each message type has a corresponding forwarding rule is judged. Each message type with no forwarding rule is confirmed to be a first message type. The priority of each first message type and the priority of a currently available link are acquired. Messages under each first message type are allocated to the link corresponding to the first message type according to the priority of each first message type, the priority of the currently available link and the preset scheduling strategy so that the messages are forwarded to a core network device via the link. The messages under the message types with different priorities are allocated to the links with the corresponding priorities to forward so that requirements of the messages with different priorities for QoS parameters in the transmission process are ensured to be met.