The invention relates to a method for forming a cluster network based on proxy change, and belongs to the technical field of wireless communication. The method comprises the following steps: S1, a CCO forms a whole network topology and establishes an initial route; S2, a station establishes an initial route; S3, the station actively initiates a proxy change request message; S4, the CCO receives the proxy change request message, updates network topology and routing information, and constructs a proxy change confirmation message; and S5, the station receives the proxy change confirmation message and updates the routing information. According to the invention, the hierarchies of the station are reduced through a proxy change method, a cluster network is formed, and the network topology is more compact, so that the number of relay stations required when the information of the station is acquired is reduced, the time overhead and the number of downlink messages are reduced, and the acquisition efficiency is improved.