The invention discloses a process for spinning cowhide fiber yarns. The process includes a hair blending technology, a cotton carding technology, a drawing technology, a spinning technology and a packaging technology. The process has the advantages that cowhide fibers can be spun by the aid of the process to obtain the cowhide fiber yarns, the cowhide fiber yarns produced by the aid of the process are high in collagen content, toughness and heat stability, accordingly, requirements of consumers can be sufficiently met, the process is favorable for production and popularization, and the like.