A backlight module and a display device are provided. The backlight module includes a backing plate. The backing plate includes a first surface and a second surface disposed oppositely to the first surface. First surface of the backing plate includes a first region and a second region surrounding the first region. The backlight module also includes a plurality of light sources disposed on the first surface of the backing plate and arranged in an array. The plurality of light sources includes a plurality of first light sources in the first region and a plurality of second light sources in the second region. The backlight module also includes a plurality of reflection structures. Each of the reflection structures is disposed at periphery of one second light source, and reflects light emitted by the second light source to a side of the second light source facing away from the backing plate.