Cooler for notebook computer

A cooler for a notebook computer is provided to cool down the notebook computer by making wind from a cooling fan pass through a lower side of the notebook computer uniformly. A body is equipped with upper and lower plates(10,20), and forms an air duct in the inside. The cooling fan(30) is mounted on the body and blows air into the air duct. A ventilating hole is formed at a part excluding the part placed at an upper part of the cooling fan while being formed at the upper plate. The notebook computer installed on the body is cooled by blowing the air from the cooling fan to the ventilating hole through the air duct. The cooling fan has a blower type cooling fan installed under the lower part to suck the air from a lower side and blow the air into the air duct. A wind blocker is installed along both front ends of the upper plate. The wind blocker prevents the air from blowing to the front side of the notebook computer by blocking air circulation between the lower side of the notebook computer and the upper plate when the notebook computer is placed on the upper plate.