The invention provides a direct type backlight module and a display device and relates to the technical field of display. The direct type backlight module comprises a direct type light source base plate which comprises a light emitting area between light emitting areas, a light emitting layer located on the emitting side of the direct type light source base plate and a semitransparent semi-reversefilm located on the emitting side of the light emitting layer. The semitransparent semi-reverse film is divided into a first area and a second area. The orthographic projection of the first area on the direct type light source base plate is at least partially overlaid to the light emitting area, the orthographic projection of the second area on the direct type light source base plate is at leastpartially overlaid to the gap area, and the reflectivity of the first area is greater than that of the second reflectivity. According to the embodiment, when the direct type backlight module is lighted locally, the first area on the semitransparent semi-reverse film can reflect more rays to the light emitting layer, so that the exciting efficiency of the part, corresponding to the light emitting part, on the light emitting layer is improved. Therefore, the chroma difference on the lighted area can be reduced and the uniformity of the picture chroma is improved.