Abstract:The paper selects the data from the annual report of domestic civil aviation listed Companies, and estimates each company’s technical efficiency and scale efficiency during the year 2002-2012 by using the logarithmic cost function. On this basis, we apply static panel data model to estimate how the market behaviors, such as merger and reorganization, and affiliation of the international alliance among civil aviation companies, have impact on their business performance. The results show that, Chinese civil aviation companies has not yet reached the minimum efficient scale; to improve technical efficiency can significantly enhance performance; under the macro environment fluctuations, the merger and reorganization within companies can significantly enhance performance, while to join the international alliance can not. The government should advocate market-oriented merger and reorganization within civil aviation companies, and even support their overseas acquisitions.