This study set global warming as background to discover the influence to civil aviation operator’s competitive, Aviation biofuels feasibility study for civil aviation operators in our nation. The conclusions of this study are presented as follows: 1. ICAO-MBM and United Nation’s influence to our nation’s civil aviation operators. 2. EU-ETS influence to our nation’s civil aviation operators. 3. Feasibility Study of our nation’s civil aviation operators learning experience from EU’s civil aviation cases. 4. Feasibility Study of our nation’s civil aviation operators self-product aviation biofuels.