Abstract: In modern times, dynamical interaction of different structures should be taken into account in aero-engine vibration analysis, as a reason, the engine should be modeled by solid elements. To take the gyroscopic effect into account in the analysis of complex rotor dynamics characteristic, based on the dynamics finite element equation of 8 node element CHEXA, a rotor dynamic analysis software package was developed on the platform of MSC/NASTRAN with the DMAP process by adding gyroscopic torque , Coriolis acceleration and centrifugal force to it. Dynamic analysis of typical models were performed, including a diagonal compressor and a conical shell. The results of calculation and experiments were compared. Typical vibration characteristics as rotor bending, shells traveling waves and various sectional vibrations were summered. The results showed that traveling waves and rotor precessions could be taken into account accurately while using the author's method. For the vibration of complex rotors can be calculated with the method, the foreground of the use in full modeling in multi-field was figured out.