Abstract: The booming of the transnational aircraft leasing market has brought about more aircraft lien disputes. Due to different understanding on the elements of the establishment of lien, it has triggered controversy in such disputes. From experiences of the US in similar cases and its lien rules, and conforming to the requirement of practices in the transnational civil aircraft leasing and the convention that we have joined, we should adopt the coexistence model of civil aircraft lien and civil aircraft priority right and clarify the establishment elements of liens and fill the gap of the civil aircraft lien. After that we can construct a scientific and reasonable system of civil aircraft lien in our country.