The present invention belongs to a field of liquid crystal display technical, and relates to a backlight module and a liquid crystal display. The backlight module includes a backplane and a light source arranged on the backplane, and further includes a position-limiting unit. The position-limiting unit is arranged on the backplane, and is capable of limiting a liquid crystal panel at a set position. The backlight module according to the present invention is a direct-type backlight module. The advantageous effects of the present invention are as follows: as compared with a direct-type backlight module in the prior art in which a plastic frame is used to fix positions of respective components, the backlight module according to the present invention reduces the cost of the backlight module effectively and enables assembling of the backlight module to be easy due to employing a configuration without a plastic frame.