Abstract: With the development of regional economy, airports have become a driving force for the rapid development of city economy. Airport construction depends on economic development, economic development is also subject to the constraints of airport construction, the two systems have a typical interactive relationship. It is of great significance to study the coupling between economic system and airport system, and to realize the mutual catalyses as well as interactive and healthy development between the two systems. Based on coupling coordination theory, the coupling coordination evaluation model of economic and airport system is constructed, meanwhile, the empirical analysis of Tianjin is conducted. Results show that the coupling degree of the two systems in Tianjin has been increased from 2005 to 2014 with imbalance and unbalance in certein period from 2005 to 2011. The two systems showed barely and primary coordination from 2012 to 2014.

Key words: economy system, airport system, coupling coordination model