Light guide plate and backlight module

The utility model relates to the technical field of light guide plates, in particular to a light guide plate and a backlight module. The light guide plate comprises a plate body, a plurality of hollow first protruding parts are arranged on the plate body, and the protruding direction of the first protruding parts is opposite to the plate body. A plurality of through holes are formed in the plate body, and the positions of the through holes are in one-to-one correspondence with the positions of the first convex parts; and each through hole is communicated with the interior of the corresponding first lug boss. Each first protruding part is provided with a plurality of hollow second protruding parts, and the interiors of the second protruding parts communicate with the interiors of the first protruding parts. The backlight module comprises the light guide plate, and an LED substrate, the light guide plate and a light diaphragm which are sequentially arranged from the position far away from the liquid crystal scr