A backlight module includes a light guide panel (LGP), and a backplane. The LGP is arranged in the backplane, each side wall of the backplane is configured with a through hole(s), and the fixing pieces penetrate through the through holes and then fix the LGP. The fixing pieces are arranged on the side surface of the backplane of the present disclosure, and the fixing pieces are used for preventing the LGP from upward and downward moving in the vertical direction.