To provide a solar light utilization alley for which assembly work is easy, number of components can be smaller, weight is light and exterior appearance is excellent.

This is a solar light utilization alley comprising a left side edge 2a and a light side edge 2b formed almost in parallel each other along a slope direction of a roof 1 on a sloped roof 1 and an upper side edge 2c and a lower side edge 2d formed respectively at a ridge side and an eaves side of the roof 1 which comprises with a plurality of solar light utilization panels 2, the left side edge 2a and right side edge 2b of the solar light utilization panels along the sloped direction of the roof 1 are respectively fixed by clamping them with vertical rail 5 equipped with a gutter construction and a vertical cover 7 provided along the vertical rail 5, the upper side edge 2c and lower side edge 2d of the solar cell panels 2 are respectively clamped by a lateral rail 15 supported on the vertical rail 5 and a lateral cover 13 provided along the lateral rail 15 for fixation as the feature of the alley.