An experimental system was established under different conditions of impacting materials,detected points,excitation points,impacting velocities,mass and eggshell strengths for eggs.The domain signal was received by the acceleration sensor and analyzed.Results showed that the dominant frequency was not significantly affected by the different impacting materials,detected points,excitation points,impacting velocities.It was the significantly affected by the mass and eggshell strength.The dominant frequency increased with the decrease of the mass,and increased with the increase of the strength of eggshell.