The invention relates to a networking communication method of an electricity consumption information acquisition system based on WIA-PA technology, belonging to the technical field of electricity consumption information acquisition. The method comprises the following steps that: S1, a gateway device assign corresponding IPv6 address for the whole electricity consumption information acquisition network according to device type of each node; S2, in combination with a networking method of the WIA-PA technology and a communication architecture of the electricity consumption information acquisition network, a backbone network and corresponding sub-networks, supporting IPv6 message transmission, of the electricity information acquisition system are established; S3, the gateway device realizes acquisition of electricity consumption information of users through the established electricity consumption information acquisition network. By the method, the WIA-PA network with IPv6 message transmission capability and the electricity consumption information acquisition system are effectively combined together, IPv6 address property of user nodes in wireless meter reading is realized, meanwhile, by a hierarchical routing search strategy, data acquisition success rate of a wireless network in the electricity consumption acquisition system is improved, problems, such as communication delay, are solved, and application demonstration of domestic industrial wireless WIA-PA standard in the filed of electricity consumption information field is promoted.