Falling type lightning arrester detection system

The invention relates to a falling type lightning arrester detection system, belonging to the power supply system technical field, and comprises node modules, an optimal node module and a remote signal receiving end. The node modules are installed in falling type lightning arresters and are connected to and controls cleaning structures; the node modules detect stains on lightning arrester external surfaces, and issue instructions to the cleaning structures according to the stains on lightning arrester external surfaces; the cleaning structures clean the lightning arrester external surfaces; the optimal node module is installed distant from other falling type lightning arresters provided with the node modules, and is in connection with another cleaning structure; the node modules send detected data to the optimal node modules; the optimal node modules send information to the remote signal receiving end. The falling type lightning arrester detection system can automatically detect lightning arrester surface stains, and the safe state of a lightning arrester, and send information to maintenance personnel, thereby reducing maintenance personnel workload, and avoiding the problem that lightning arrester faults can only be detected on a site, and can not be warned in advance.