Taking solar panels as an example, the azimuth angle of solar panels should be checked during normal maintenance, whether there are branches, leaves or other foreign objects directly blocking. Are there any cracks, dust deposits and dirty lights on the surface of other objects in the shadow area? Whether the monomer is cracked or not, and whether the connection is smooth or not are included in the scope of inspection. In the use system of LED street lamp, the storage battery is the biggest difficulty in maintenance, because the service life of normal storage battery is 2-3 years at present, and the charging and discharging situation of storage battery should be checked frequently in its life cycle, and whether the electrode or wiring is corroded or contacted badly at any time should be observed. These are the main maintenance tasks of led.