The invention discloses a solar energy opening and closing side wing display panel of a mobile trolley, which includes trolleys, A base is fixedly arranged on the trolley, A rectangular groove is formed in the base, the output shaft of the motor is fixedly connected with a rotating shaft, the upper end of the rotating shaft is fixedly sleeved with a driving gear, and the lower end of the rotatingshaft is fixedly sleeved with a driving wheel, A driven wheel is connected to the driving wheel through a belt, the inner ring of the driven wheel is fixedly sleeved with a driven shaft, and the outerwall of the upper end of the driven shaft is fixedly sleeved with a driven gear, the driven gear and the driving gear are respectively meshed with the gear bars fixedly arranged on the side walls ofthe moving blocks which are slidably clamped on the inner walls of the two ends of the rectangular groove, An out wall of that fixing block is provided with a receiving groove, An air cylinder is fixedly arranged in the groove, a connecting rod is hinged on the outer wall of the protrusion, the other end of the connecting rod is hinged with an intermediate position of one side of the placing platerotatably connected on the inner wall of the receiving groove, and a solar panel is fixedly arranged on the top surface of the placing plate. The device can quickly and effectively open and cooperatewith the solar panels on both sides of the trolley.