The invention discloses a method for producing Coolvisions fiber yarn, which relates to the technical field of spinning engineering. A Coolvisions fiber is blown and carded to form a raw sliver; the raw silver is subjected to two processes of combination mixture pure spinning or three processes of mixture spinning with other fiber raw silvers to be made into a drawn sliver; the drawn sliver is subjected to rough spinning, fine spinning and spooling, and the formed spool yarn can be made into fabrics, such as thermal underwear, outdoor sports wear, polar fleece, T-shirt, military special clothes, and the like. The Coolvisions fiber yarn can be printed and dyed at normal temperature and normal pressure, has high dyeing rate, good color fastness, rapid moisture guide, ventilation, deodorization, flexible hand feeling, good elasticity, difficult deformation, good abrasive resistance, cool feeling, body attachment and bright and rich fabric color, and meets the application requirements of high-grade cloth fabrics, fashionable dress fabrics, and the like.