Abstract: A grid assembly intelligent photovoltaic power generation system includes a supporting unit, a separated composite stand secured on the supporting unit, a shaft with a square cross-section shape arranged on the separated composite stand and capable of rotating on the separated composite stand and a plurality of photovoltaic panels secured onto the shaft with a square cross-section shape and forming a single-row of photovoltaic panel grid; wherein in a condition that a plurality of the photovoltaic panel grids form a photovoltaic array, a certain distance is formed between each row of the photovoltaic panel grid.