To provide an endotracheal intubator that helps easily and correctly carry out endotracheal intubation to a small animal.

An intubator used in insertion of an intubation tube into the bronchus from the entrance of the bronchus in the mouth of a small animal, characteristically made in a size that allows insertion into the mouth of a small animal, having an opener 10 having insertion portions 12a and 12b that open the mouth of the small animal and expand the interior of the mouth, a lighting means 22 provided in the opener 10 and illuminates the entrances of the bronchi in the mouth with the insertion portions 12a and 12b inserted into the mouth of the small animal.