Double-head photovoltaic cleaning machine, with double brush discs, can remove heavy pollution of photovoltaic panels more thoroughly, and the operation is easier and easier to control, and the cleaning efficiency is doubled. It is suitable for large-scale cleaning environments such as distributed workshop roofs, large-scale power stations, agriculture and light complementation, fishery and light complementation, and mountain photovoltaic power stations, with wide application range and high efficiency. The telescopic rod is 3.2-7.2 meters long and can be extended freely. It is equipped with three power supply schemes to choose freely.