The utility model disclose a lighting tube luminaire, which comprises an arc-shaped reflecting plate and a light shade, wherein the light shade includes a rectangular frame and a plurality of partition boards, the partition boards are arranged on two opposite sides of the rectangular frame, a light tube is arranged on the other two opposite sides of the rectangular frame and located on a central shaft of the arc-shaped reflecting plate, and the reflecting plate and the partition boards encircle the light tube; and in addition, the reflecting plate and the light shade are provided with surfaceshaving optical reflectivity. The reflection of the reflecting plate and the rectangular frame is used to enhance the brightness of a light emitting surface, and meanwhile the partition boards are used to reflect partial lights of the light tube and then reduce the light-dazzling degree.