With the carbon emission of Chinese civil aviation transportation industry from 2010-2018, based on the kaya identity model, GDIM was used to decompose the sum of the contribution value of eight influencing factors, and the eight influencing factors were divided into intensity effect, scale effect and efficiency effect.The analysis results show that the scale effect has a significant carbon emission-promoting effect, and the overall intensity effect has both promoting and inhibitory effect.Based on the analysis results, suggestions is put forward ,including accelerating the formulation of development strategic plans, improving the efficiency of civil aviation transport, improving energy utilization.