The solar power supply system is composed of solar cell module, solar controller and battery (Group). Inverter can also be configured according to actual needs. Solar energy is a clean and renewable new energy, which plays a wide role in people's life and work. One of them is to convert solar energy into electric energy. Solar power generation is divided into photothermal power generation and photovoltaic power generation. Generally speaking, solar power generation refers to solar photovoltaic power generation, which has the characteristics of no moving parts, no noise, no pollution and high reliability. It has an excellent application prospect in the communication power supply system in remote areas.