In the international competition, U. S. and European multinationals often set technical and intellectual property barriers to block China's enterprises. On the other hand, the lack of weak accumulation of technology and intellectual property make many of our companies at a distinct disadvantage in the process of economic globalization. In this paper, the annual distribution, the geographical distribution and the technical topics of patent applications of Boeing and Airbus, which are the monopoly enterprises in the field of civil aircraft manufacturers, was studied thoroughly. And the revelations and suggestions to the large aircraft program were proposed.