The backlight module provided in the present disclosure comprises a backplate and a light-emitting device, and the backplate has a mounting surface. The light-emitting device comprises a mounting member and a light source disposed on the mounting member. Moreover, the backplate comprises a concave portion and/or a convex portion, and the concave portion and/or the convex portion fixes the mounting member onto the mounting surface. The backlight module provided in the present disclosure can simplify steps of assembling or disassembling the light-emitting device, thus production efficiency can be improved and high integration manufacturing of backlight modules can be facilitated.