The invention discloses a solar photovoltaic cell panel cleaning trolley. The cleaning trolley comprises a walking device, a lifting arm and a brush roll, wherein a rack of the walking device is provided with a rotary base driven by a power unit; the brush roll is driven by a hydraulic motor and provided with bristles; the brush roll is rotatably mounted on a brush roll frame; the lifting arm comprises a front arm and a rear arm; the front arm is hinged to the rear arm; an elastic connecting device is arranged between the front arm and the rear arm; one end of the rear arm is hinged to the rotary base; a hydraulic cylinder is arranged between the rear arm and the rotary base; and the front arm is hinged to a connecting base, and the connecting base is detachably fixed to the brush roll frame. By adopting the solar photovoltaic cell panel cleaning trolley, the technical problem that cell panels are damaged by the brush roll due to jolting when a cleaning trolley carries out operation on the bumpy ground. During operation of the cleaning trolley, water is not needed, and the cleaning trolley is particularly suitable for application and popularization in photovoltaic power stations in deserts, gobi and cold areas.