A slim bezel backlight module and a liquid crystal display apparatus having the same are disclosed. The backlight module includes a light source, a light guide plate, a reflector, a plastic frame assembly and a square-shaped adhesive tape. The plastic frame assembly is designed to be integrated by iron material and plastic material, and a few plastic portions of the plastic frame assembly protruded from the sides of the plastic frame assembly to form a zigzagged surface for increasing the adhesion area for the square-shaped adhesive tape, thereby solving the problem that the lack of enough border width makes the plastic frame assembly hard to be processed and assembled.