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.