Channel distributing method, channel distributing device and Wireless Local Area Network system

The present invention discloses a channel distributing method, a channel distributing device and a Wireless Local Area Network system, wherein the channel distributing method includes: determining multiple candidate channel configurations; according to a neighboring parameter of an AP of each channel to be distributed, calculating interference intensity distribution under each candidate channel configuration in the multiple candidate channel configurations; according to the interference intensity distribution under each candidate channel configuration in the multiple candidate channel configurations, selecting a candidate channel configuration corresponding to the interference intensity distribution of the minimum system interference or the most stable system from the multiple candidate channel configurations as an actual channel configuration; and candidate working channel of the AP of the each channel to be distributed in the selected candidate channel configuration as an actual working channel of the AP of each channel to be distributed. The channel distributing method of the preset embodiment can dynamically adjust the actual working channel of the AP of the channel to be distributed, reduce the interference between the APs, effectively use the bandwidth of the channel, increase the speed of data transmission and increase the handing capacity of the system.