Abstract: A underhood work light has a light tube and a pole-type base, the light tube is installed on the said base, the base is a hollow tube; a claw is installed at each end of the base by holding the stem of the said claw into the base tube, the claw stem which can slide in the base is connected with the base through a spring, the range between the claws is matched with the width of the hood; The benefits of the present invention are as follows: by pulling outward the both claws, the work light is fixed onto or taken off from the hood conveniently, and the storage battery makes the work light independent on the out power source, so the invention is convenient and easy to use.