The present paper deals with population and distribution pattern of Four-horned Antelope Tetracerus quadricornis in Sathyamangalam Wildlife sanctuary. Of 24 individuals recorded in 19 sightings. The mean group size 1.26 (range 1 to 2 individuals) proved that this species is mostly solitary or semi-solitary. The study was carried out by grid based approach and recce samplings were followed to find out the distribution pattern of the species. This species is known to be shy in nature; because of its smaller size make direct sightings were difficult to find the animal. However indirect signs were also taken in to consideration for the assessment of its distribution. The majority of the records were high in hill/nulla slopes (~72%) and flat and open areas (28%). Meanwhile sightings (direct and indirect signs) of its locations were plotted in the map. This paper revels that the Four-horned Antelopes have sparsely distributed in different habitat types in the sanctuary.