The invention discloses an Ethernet traffic statistical analysis method, which comprises the steps that S1, output ends of several groups of slave stations of the Ethernet are enabled to be connectedto an input end of a data acquisition module through a wireless communication module; S2, a co-channel interference relationship in the Ethernet is acquired by combining an sFlow network traffic sampling technology and a network traffic probe acquisition technology through the data acquisition module; S3, the data acquisition module recognizes interference nodes between the slave stations in the Ethernet and calculates the network state of each wireless access point; and S4, the data acquisition module accesses an optional wireless access point list when the network state is normal, and then filters network date of the slave stations in the Ethernet through an information filtering module. Compared with the traditional technology, the method disclosed by the invention can provide differentiated services for different traffic, can enable people to learn the operation state of the network by using a network traffic control technology, and enables the network to be more manageable and controllable.