Abstract: Inclination detection of power towers is an important means to ensure the safe and stable operation of high-voltage transmission line systems. Currently, state monitoring devices have issues such as high power consumption and reliance on chemical batteries for power. This study designs an integrated self-powered tower inclination wireless sensing system, which collects wind energy from high-altitude towers through an electromagnetic energy harvester. The collected energy is stored and supplied to the load by a low-power energy management circuit. The performance of this system was verified by electromagnetic simulation and experiments. The harvester can start at a wind speed of 2 m/s, and at a wind speed of 8 m/s, the voltage of the device in a no-load situation is 1.25 V, with an output power of 8.2 mW. A low-power energy management circuit was built using the BQ25570 chip, and after boosting, it outputted 3.3 V to power the inclination sensor. According to the experimental results, this device can power tower inclination sensors or other small electrical equipment, providing technical support for self-powered IoT wireless sensor network nodes.