In this study, tested and observed the surface and dyeing properties of Tencel fiber including the fiber strength, contact angle, Zeta potential and dyeing adsorbent after treating xenon arc irradiation. And also expected to know the relation between these two factors. The results show that the surface of the Tencel fiber has been damaged after treating xenon arc irradiation, and the fibrillation increased the dyeing adsorbent on the Tencel fiber surface.