A semiconductor light emitting device which has a wavelength converting part on a semiconductor film and can eliminate unevenness in emission color without a reduction in light output. The semiconductor film includes a light emitting layer. The support substrate is bonded to the semiconductor film via a light-reflecting layer and has a support surface supporting the semiconductor film and edges located further out than the side surfaces of the semiconductor film. The light-shielding part covers the side surfaces of the semiconductor film and part of the support surface around the semiconductor film in plan view. The wavelength converting part contains a fluorescent substance and is provided over the support substrate to bury the semiconductor film and the light-shielding part therein. The wavelength converting part has a curved surface shape in which its thickness increases when going from the edges toward the center of the semiconductor film.