Recently，research on Aero-Engine rotor vibration characteristics is becoming a hot spot，but the study in engineering is still at the beginning and more work need to do further. This paper analyzed generic model of aero-engine rotor and propose a generic idea of aero-engine rotor vibration characteristics in pitching maneuvers，then the data of an engine in flight test were analyzed，and the verification was done. The results showed that the verification of real flight test accord well with the idea.