Solar water pump systems require regular maintenance to ensure stability. Maintenance includes firmly mounting the equipment, cleaning the solar panels and water pumps, monitoring water pump performance, checking electrical safety, and lubricating and replacing parts. In the face of problems such as water failure, loud noise, insufficient head, and water leakage, it is necessary to clean the pipes, check the power supply, adjust the speed, optimize the layout, replace the seals, etc. Following the guidelines can extend the service life, improve efficiency, and reduce failure and maintenance costs.