The projection from the vestibular nuclei to the dorsal horn of the spinal cord in the cat was studied with the horseradish peroxidase method. It has been discovered that the vestibulospinal tracts originate not only from the lateral, medial, and spinal vestibular nuclei but also from the superior vestibular nucleus. The site of termination of the vestibulospinal tracts is in the lateral region of the dorsal horn of the spinal cord as well as in the laminae Ⅶ and Ⅷ of Rexed.