A sealing frame, a backlight module and a display device. The sealing frame includes a frame made of hard materials and barrier wall portions made of soft materials. The frame is for supporting, positioning and protecting various components of the backlight module, embedding the display panel, and avoiding damages of all functional layers due to collision, pressure and the like. The barrier wall portions correspond to the corners of the display panel for protecting key corners of the liquid crystal display panel, and preventing damage of the liquid crystal display panel due to contact with the hard plastic part under external force.