Abstract: Employing an embedded atomic potential(EAM)and molecular dynamic(MD) method,deformation of titanium along [0001] and [0110] model of tensile have been established.The results show that tensile process of both two direction contains four stages,elastic deformation,uniform plastic deformation,necking and fracture.The slip system is few and the orientation deviates the soft one when tension is applied along [0001].The yielding stress and strain are 3.55 GPa and 0.095 respectively while the fracture strain is 0.55.For the tension along [0110],the slip system is more and the orientation is close to soft one.The yielding stress and strain are 2.41 GPa and 0.067 respectively while the fracture strain is 1.28.The plastic deformation along [0110] tension is easier and the plasticity exhibits better.