At present,with the vigorous development of power Internet of Things,how to sustain and supply energy for a long time has become a technical problem that tens of thousands of sensors need to face. Triboelectric nanogenerator (TENG),as a new high efficiency energy supply technology,has a very broad application prospect in the field of sensor self-power supply. In this paper,based on the working principle of triboelectricity,a multi-layer elastic TENG energy harvesting device for transmission line breeze vibration is designed by using the vertical contact of the multi-layer elastic structure to separate the TENG,and the transmission line breeze vibration state is simulated by the output performance test platform of the vibration energy collector. The basic electrical characteristics of energy collectors at different frequencies and amplitudes are tested,and combined with power management strategies,a self-power supply system for vibration energy acquisition for transmission line breeze vibration is constructed,which realized efficient acquisition and conversion of wide-band vibration energy and completed energy supply for commercial sensors. Finally,the validity and feasibility of the vibration energy collection device designed in this paper are verified by the vibration reduction model of the transmission line. The vibration energy acquisition self-power supply system designed in this paper can effectively convert the broadband vibration energy of the transmission line into electric energy,and has the characteristics of simple structure and good economy,which can provide a new solution to solve the power supply problem of sensors for power Internet of Things.