The utility model discloses a snow and dust removing device for a photovoltaic power generation panel. The device comprises a control device, a driving device and a handheld cleaning pipe, the handheld cleaning pipe is connected with the driving device through a detachable hose; a cleaning head is connected to the end of the handheld cleaning pipe, a wedge-shaped snow removing shovel is arranged at the edge of the front end of the cleaning head, a bristle wiper is arranged on the lower side face of the wedge-shaped snow removing shovel, a cleaning opening communicated with the handheld cleaning pipe is formed in the lower side face of the cleaning head, a pressurizing embedded plate covers the cleaning opening, multiple water spraying holes are formed in the pressurizing embedded plate, and heating devices are arranged on two sides. The driving device comprises a driving pump, quick-connection sealing devices used in cooperation with the hose are arranged at an inlet and an outlet of the driving pump respectively, and the control device is in control connection with the driving pump. When dust is cleaned, pressurized water flow is sprayed out from the water spraying holes to be matched with the bristle wiper to clean the glass panel; during snow and frost removing, the wedge-shaped snow removing shovel is matched with the heating device to melt and remove frost and snow, and melted snow water is sucked in from the cleaning opening.