The digital display type tension and compression testing machine is composed of drive loading system, transmission system and measuring control system, which is suitable for the test of the mechanical properties of the helical cylindrical spring and all kinds of elastic components. The control system of the motor is used to control the speed of the motor. Digital display of test force, spring deformation, loading speed, the number of tests; test four stalls full automatic switching, force measuring range; test forms (test force provided spring length or tensile deformation detection); multi point automatic acquisition; automatic test process; calculation of the stiffness of the spring and block printing the degree of initial tension and tension springs etc.. CNC speed regulating motor drive loading, lead screw drive. Output print test report (mini printer).