This study aims to determine the morphometric characteristics of Purebred-Arab horses born and bred in Algeria specialized in horse racing depending on age and sex. Measurement of the study was taken at the Kaid-Ahmed racecourse in Tiaret (Algeria). The average size at the withers of the subjects (n=95) was 152.15±05.07 cm, and the thoracic girth was 166.44±06.43 cm. Compared to the height at the withers, the rump size was slightly lower 151.61±04.79 cm, and the body length was almost identical 152.82±06.30 cm with an average weight of 395.83±40.51 kg that is considered minor. Our sample horses appear pretty thick relative to their size with an average circumference of the anterior and posterior guns of 18.30±01.70 cm and 19.68±0 1.79 cm respectively, and in extent arm lengths 30.90±02.66 cm and forearm 31.77±02.81 cm. The various calculated indices qualify our horses as compact horses, light, square and long. The reading of the dress color of our model presents the dominance of the Alazan at 51.57%, and the shape of the chamfer is mostly Camus at 56.84%, giving it a short head with a broad forehead and concave chamfer. Statistical analysis determined that males were more significant than females and adults compared to young.