A front light source and a display device are disclosed, and the front light source includes a housing extending along a first direction, and a side wall of the housing having an opening extending along the first direction; a supporting frame, located inside the housing and extending along the first direction, where the supporting frame includes a supporting surface; a light bar, where the light bar extends along the first direction and is attached to the supporting surface; and a side of the light bar far away from the supporting surface has a plurality of light-emitting units arranged along the first direction; a polarizing lens located between the light bar and the opening and extending along the first direction; where the polarizing lens includes: a light incident surface, a light exiting surface, a first reflective curved surface and a second reflective curved surface, extending along the first direction.