The experimental research of the longitudinal impact between two flexible cylinder rods was investigated.In order to study the dynamics response during the contact process,the experiment setup of the impacts between two flexible bodies was designed,the contact duration was accurately measured according to the conductivity of aluminum,and the non-contact measurement for the velocity response of the flexible rod during the impact process was non-contact measured by the Laser Doppler Vibrometer.Furthermore the strain at the point near the contact region was implemented by the dynamic strain amplifier.The wave propagation in the flexible rod was revealed through the research.The feasibility and rationality of the experiment setup was verified.