The embodiment of the invention discloses a central node dynamic selection method, nodes and a wireless ad hoc network. The method comprises steps: the central node receives a recommendation message reported by at least one access node, wherein the recommendation message at least comprises the identities of the optimal central nodes recommended by the access node according to the location information of the surrounding nodes and the number of the surrounding nodes; the central node determines one optimal central node as a candidate central node according to all received recommendation messages; and when the candidate central node and the central node are not the same node, the central node adds a central node change instruction and the identity of the candidate central node to a first system message and broadcasting is carried out. The embodiment solves the problems of network deployment failure or low efficiency of a star wireless ad hoc network in the prior art, network deployment ofthe star wireless ad hoc network is optimized, and the networking efficiency of the star wireless ad hoc network is improved.