The invention relates to a ZigBee network based intelligent substation sensor online detection networking method. According to the method, a ZigBee star-shaped networking topology structure is adopted in a station layer of the substation equipment; in the station layer, a coordinator node in the ZigBee application layer performs initializing, starting and establishing of the network; a dual-star-shaped networking topology structure is adopted in a spacer layer and a process layer, and the spacer layer and the process layer are established into a layer of new sub network; in the newly-established sub network, the coordinator node receives a control instruction from an upper computer end, and sends the control instruction to each sensor detection node through the ZigBee network; the detection node collects working state data information of equipment according to the instruction and uploads the data to ZigBee coordinators; and the sensors and the coordinators are configured in substation equipment clusters in a distributed manner and connected with TCP/IP Ethernet servers through wire/wireless communication modes. The significant impacts caused by manual detection difficulties, and natural factors such as equipment aging, weather and the like are greatly reduced by the ZigBee network based intelligent substation sensor online detection networking method, so that the method is quite brighter in the application prospects.