A backlight module includes a back plate structure, a light source disposed in the back plate structure, at least one wire connected to the light source, and at least one wire fixing frame fixed on the back plate structure. Each wire fixing frame includes a main part, a first fixing part disposed on a side of the main part, a second fixing part disposed on a side of the main part and opposite to the first fixing part, and an extending part extending in a direction from the second fixing part to the first fixing part. A wire outlet is defined between the extending part and the first fixed part, and a wire inlet is opposite to the wire outlet. A wire hold space is defined among the main part, the first fixing part, the second fixing part, and the back plate structure.