The invention relates to an autonomous networking method for a wireless meter-reading system of an electric energy meter. Each node in the system comprises a concentrator and a collection terminal. The method comprises the following steps: the node periodically transmits a neighbor switching command to a network in a broadcast mode; each node receives the neighbor switching command and add the node address transmitting the neighbor switching command into a self neighbor list; if the node can be in two-way communication with one node, and the node is added into a network, an uplink route from the node used as a father node to the concentrator is built; the node added into the network transmits a route updating command to the concentrator in a unicasting manner by a self father mode to build a downlink route from the concentrator to the node added in the network just now; the node added in the network just now is autonomously added into the network; the operation is performed in a circulating manner until all nodes are added into the network. The wireless meter-reading system utilizing the method has accelerated networking speed, is easy to maintain, can timely reflect the network state and realize an unmanned function thoroughly.