Abstract: To improve the rabbit fiber’s surface friction coefficient and tensile strength, the fiber’s surface is grafted using milk protein and cross-linking agent SFEGE with the pretreatment of H2SO4 and H2O2 respectively. In this paper, analysis of some index such as surface topography, friction coefficient and strength of grafted rabbit fibers is performed. Research results show that, with the pretreatment of H2SO4, under the condition of 10% protein and 1% ~ 1.5% cross-linking agent concentration, milk protein grafting on the fiber surface reaches the best, the friction coefficient and strength growth can respectively achieve 40.97% and 4.96%. The grafting effect with the pretreatment of H2O2 is relatively poor. Although the friction coefficient growth can reach 32.33% under the condition of 10% protein and 1.5% cross-linking agent concentration, fiber tensile strength declined sharply.