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Aero-engine supplies the major motive power to the modern aircraft. Safely and reliably operating of Aero-engines is important for Safety of modern civil aviation industry. Thus the inspection of aero-engine operation and the fault diagnosis technology have become more and more important. In this paper, the research of the inspection operation of aero-engine is reported. Especially, the apply of modern artificial intelligence in this field is disserted.The research work in this paper mainly includes the following four aspects. Firstly, it introduces the techniques of inspecting aero-engine. The main content and operation flow of those techniques is reported. Secondly, the research of knowledge discover based on the database of aero-engine operation is introduced. In the third aspect, the technique of neural network is applied in the field of wear fault diagnosis of aero-engine. The last part introduces the design and realization of the software system for inspection aero-engine. The software system is applicable for civil airline company.