Abstract: The mechanical properties of the kinds of rubber used in road wheel,track board and track pin of tracked vehicular travelling system have been tested.Test value and tendency of change of Young's medulus,shear and dynamical loss factor of the three kinds of rubber have been obtained,too.The correctness of statistical theory about the relations between stress and strain of rubber on condition of small deformation were verified.On the basis of testing,the influence of property of material of the three kinds of rubber upon tracked vehicular travelling spstem is analysed.