Research progress on the blade loss of aero-engine was reviewed in recent years. The mechanical problems related to the blade loss process were outlined. The mechanical mechanism

numerical simulation and the test study of the transient dynamical characteristic and survival ability due to blade loss in the rotor and whole aero-engine structural system were discussed emphatically. The studies involved the load and mechanical behavior

the techniques of modeling and calculation

the test of mechanism and the whole aero-engine. The results show that it's necessary to take the whole aero-engine system as object and consider the load aging characteristic of the complex structural system in severe environment. The structural integrity and reliability can be improved by structural and dynamical design strategy.