A backlight module, which includes: a backplane; a reflector sheet, a light guide plate, and an optical diaphragm group, which are sequentially stacked on the backplane; and multiple connectors disposed at a border of the backlight module, wherein the connector having a space block and an upper connection portion connected to an upper surface of the spacer block, the spacer block is disposed between the backplane and the reflector sheet, the upper connection portion is relatively fixed simultaneously to the reflector sheet, the light guide plate, and the optical diaphragm group. A display device is also disclosed.