The present invention relates to a photovoltaic power generation device based on agro-livestock areas. The photovoltaic power generation device which is installed in lands of agro-livestock areas comprises: one or more pillars vertically installed at regular intervals in horizontal and vertical directions; a slope adjusting rod installed to be rotatable between the pillars arranged in the horizontal direction; a connection member coupled between the pillars arranged in the vertical direction; one or more holders placed to be coupled to an upper part of the slop adjusting rod to be rotatable and capable of holding a photovoltaic panel; a daily tracking unit controlling all the holder to be interconnected so as to be rotated along a location of the sun during the day; and a seasonal tracking unit capable of adjusting an inclination angle of the holder by controlling all the slope adjusting rods to be interconnected and be rotated along a meridian height of the sun throughout the year.
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