The present invention provides a backlight module and a display device. The backlight module comprises a glue frame, a light source, a circuit board, a light guide plate and a quantum dot film, and the light source comprises a first lateral surface, a second lateral surface and a first illuminating surface, and the first illuminating surface intersects with the first lateral surface and the second lateral surface, respectively, and the light guide plate comprises an incident surface, a bottom surface and a second illuminating surface, and the incident surface intersects with the bottom surface and the second illuminating surface, respectively, and the bottom surface and the second illuminating surface are oppositely located, and the incident surface of the light guide plate is located adjacent to the first illuminating surface, and the quantum dot film is located corresponding to the second lateral surface and the second illuminating surface.