Power transmission line monitoring method and polling robot used for detecting power transmission line

The invention discloses a power transmission line monitoring method and a polling robot used for detecting a power transmission line. The power transmission line monitoring method comprises the polling robot, wherein the polling robot comprises a storage battery, a walking module, a wireless data receiving and transmitting device and monitoring equipment carried on the walking module. The method comprises the following steps: the walking module of the polling robot is connected to the power transmission line, the power transmission line is taken as a walking track, meanwhile, a pole and tower used for fixing the power transmission line is provided with a photovoltaic power generation panel and a mobile power pack, the mobile power pack is provided with a charging pile and an induction device, and the polling robot is provided with a charging butt joint port and an induced device, wherein the photovoltaic power generation panel and the mobile power pack are mutually connected, and the charging butt joint port and the induced device are matched with the charging pile. The charging quantization of the polling robot can be popularized to realize true real-time monitoring.