Photovoltaic panel cleaning robot

The invention discloses a photovoltaic panel cleaning robot. The photovoltaic panel cleaning robot comprises a base plate, a pair of steering wheels installed on the base plate, a pair of universal wheels and a handrail and further comprises a rotation device, an adjusting device, a cleaning device, a water supplying device and a control device. The rotation device comprises components of a rotation support, a workbench, a rotating motor, a rotation gear and the like which are fixedly installed on the base plate; the adjusting device comprises a lifting part, a rotary part and a retractable part, the cleaning device comprises a moving part, a spray part, a first cleaning part and a second cleaning part, and the water supply device comprises components of a water tank, a recovering groove, a water pump and the like, wherein the recovering groove is formed in the water tank, and the water pump is arranged on the water tank; and the control device comprises a single chip and a control panel. According to the pho