In recent years, the power grid failure caused by lightning has kept on a high level. Many kinds of lightning protection device can’t be used in all lines because of the l cost limit and protection scope. Areal-time monitoring and analysis system for grid lightning has been developed based on the wireless sensor network, which could arrange the wireless sensor node according to the line’s conditions,collect real-time status data of front arrester and the parameters of lightning, and sent them to master monitoring center through the multi-jump sensor network. Then the workers can timely master the operation status of grid lightning protection equipments, as well as can analyze the lightning form and fault position, which will provide the powerful evidence for the accurate judgment of lightning disturbance causes to transmission line.