Photovoltaic power generation sun tracking device

The invention relates to a photovoltaic power generation sun tracking device. The photovoltaic power generation sun tracking device comprises a photovoltaic panel, a supporting base, a circumferentialrotating part and a horizontal elevation angle adjusting part, wherein the circumferential rotating part comprises a turntable bearing and a motor; the turntable bearing is horizontally arranged right above the supporting base and performs circumferential rotating motion around the central axis under the action of the driving force of the motor; the horizontal elevation angle adjusting part comprises a base plate, a pitching plate, a connecting plate and a dragging unit; the substrate synchronously and circumferentially rotates along with the circumferential rotating part; the pitching plateis used for placing and fixing the photovoltaic panel and is hinged to the substrate; one end of the connecting plate is hinged to the pitching plate, and the other end of the connecting plate is driven by the dragging unit to