The Martinik Hair Sheep breed has been created recently (1993). Its origin, purpose and genetics program have been described previously (Leimbacher, 1991; Leimbacher, 1996; Leimbacher et al., 2000). The interest for the conservation of genetic resources of local breeds to sustain the biodiversity in the Caribbean Region has also bee-η discussed (Naves et al., 1998; Naveset al., 2001). The efforts employed since ten years by a group of farmers within a selection Unit (USOM) to produce selected pedigree stock, are explained. Their results make us think that this new Hair Sheep breed is a very interesting genetic resource for the specie. This breed may very usefully, contribute with the other I lair Sheep breeds within the Region (Wildeus, 1991), in the development of Mutton production in the Tropics.