The horse occupies an important space in the history, culture and tradition of the Algerian society. Horses represent an important industry, with approximate population of 1,00,000 horses. The aim of this review is to present review the epidemiological situation of some equine diseases in Algeria; West Nile fever (WNF), Rhinopneumonitis (RP), Equine Viral Arteritis (EVA) and Equine Influenza (EI). This epidemiological analysis showed the existence and persistance of rhinopneumonitis, Equine Arteritis virus, West Nile fever and Influenza virus in the equine population of Algeria. These pathologic agents deserve all the attention of owners, equine breeders, veterinarians and policy makers. Consequently, the monitoring of immunological status of horses and the systematic use of vaccination calls for the unanimity of the scientific community as a basic principle, to avoid these diseases of economic and zoonoses importance.