Abstract: According to one embodiment of the present invention, a solar panel curtain device comprises: a solar panel provided tilting at a predetermined angle relative to the ground surface, corresponding to the angle of incidence of sunlight; a first roll housing provided at the lower edge of the solar panel, having formed therein a first rotational shaft and a solar panel curtain accommodating space, and having formed on one side thereof a slot adapted such that the solar panel curtain can withdraw into the inner accommodating space or advance out of the inner accommodating space; a second roll housing provided at the upper edge of the solar panel, and having formed therein a second rotational shaft; a first rail and a second rail respectively touching the two ends of the first rotational shaft and the two ends of the second rotational shaft, and performing rotational motions on two sides of the solar panel; and a panel curtain of which the ends on both sides respectively touch the first rail and the second rail, an