Light guide plate and backlight module thereof

A light guide plate has a bottom surface and a light exiting surface opposite to the bottom surface, and includes a plurality of light guide lenses, a plurality of accommodation areas and a plurality of disconnections. The plurality of light guide lenses are arranged along a first direction and a second direction, and form a light guide lens array; wherein, the first direction is perpendicular to the second direction, and the first direction and the second direction are parallel to the bottom surface and the light exiting surface. The plurality of accommodation areas are respectively set in each light guide lens for accommodating at least one light emitting element. Each disconnection is located between adjacent light guide lenses, and the plurality of light guide lenses are arranged along the first direction or the second direction on both sides of the each disconnection. The invention also provides a backlight module.