Photovoltaic power generation device capable of assisting in improving power generation efficiency

The utility model relates to the technical field of photovoltaic power generation devices, in particular to a photovoltaic power generation device capable of assisting in improving power generation efficiency, which comprises a support assembly, a photovoltaic power generation panel and an assisting device, and is characterized in that the support assembly comprises a pair of obliquely-arranged top beam supporting columns and supporting bottom feet welded and supported at the bottoms of the top beam supporting columns; the auxiliary device comprises a cloth winding roller, shielding cloth anda wire winding roller, and has the advantages that the wire winding roller is driven by a second motor to rotate, so that a traction rope is wound by a wire winding reel on the wire winding roller, meanwhile, the cloth winding roller is driven by a first motor to rotate, and the shielding cloth is unwound; when the day and the night are alternated, moisture condensation on the surface of the photovoltaic power generation