On the basis of theoretical framework,this paper takes six domestic listed companies as cases for the empirical study.Results are shown as follows.Firstly,there is certain relationship between airport scale and its efficiency.On one hand,there is negative correlation between airport scale and efficiency,on the other hand,there are some other factors affecting the airport efficiency,because empirical studies show that different airports on the same scale have different efficiency.Secondly,aviation industry has the following characteristics: high input,high cost,low returns,low output,which lead to periodic variation of airport efficiency.Finally,excellent management will enhance efficiency effectively.As domestic medium-sized airport,Shenzhen Bao'an Airport shows sustainable and efficient operations for its quality asset management and good financial situation.Furthermore,we proposed that large and medium-sized airports should perfect management and technics to promote its efficient operation.