The invention provides a network distribution method, device and system. The method is applied to any device in a wireless mesh network, and includes the following steps: receiving communication information sent by other devices in the mesh network, wherein the communication information includes a network address and a unique identity of each device; determining whether the own network address isthe same as the network addresses of other devices that are received; if yes, calculating the unique identities of the devices with the same network address according to a preset rule, and obtaining an ID value of each device; and comparing the own ID value with the ID values of other devices that are obtained by using a comparison strategy, and determining whether to modify the own network address according to a comparison result. Autonomous communication is realized through mutual interaction between the devices in the mesh network, the synchronization of the network addresses can be achieved, the network distribution time can be shortened, and the network distribution efficiency can be improved. If the device is abnormal, the uniqueness of the device address can also be ensured throughthe transient network synchronization, and thus the compatibility of the devices in the mesh network can be improved.