A solar light type glass greenhouse includes a greenhouse unit. The greenhouse unit includes an under-eaves part including north, south, east and west lowersurface parts； and a ceiling part including a sloping roof on a north side, and south, east and west uppersurface parts. The sloping roof slopes by a sloping angle α so that a south side is inclined upward when viewed from east. The sloping angle α satisfies relations 15°<；α<；67°, and 63.6°-LAT≦α≦69.6°-LAT, where LAT is a latitude of an installation place. The sloping roof includes an eave extending to south beyond the south uppersurface part. A length of the eave is HS×sin(90°-θS)/sin(θS-α) or more, where θS is a culmination altitude of the sun in the summer solstice, and HS is a sum of vertical lengths of the south lowersurface part and the south uppersurface part. The sloping roof includes a glass member having a heat reflective function.
