Terrorism attack influences traveller needHowever the effects of oil price and terrorism on airline profitability was limited to a regional perspective, so oil price and terrorism external environmental change will only influence some countries' airline traveler numbers to be decreased, e.g. the terrorism attack of plane crash event to USA on 11 Sept. After the terrorism attack happened on USA 11 Sept. incident of terrorism attack was restricted to events of skyjacking, attacks on oil production, refinery and distribution. Then, due oil shortage will be caused due to reducing oil production, refinery and distribution as well as it will influence oil price is risen and airline ticket price is also risen. It will reduce travel consumption desire to some countries if their airlines' ticket prices are also increasing. Other types of terrorist activities, such as attacks on financial targets or senior government officials could have an adverse effect on the petroleum and airline industry. I think the disruption of the production or distribution of petroleum because of incidents of terrorism was costly in terms of loss of business and the inflationary effect on fuel dependent products or services. In fact, some airlines have adopted more fuel saving technology, so whose fuel consumption would not use more than other non fuel saving technology airlines. It seems fuel price increasing will not be the only factor to influence the airline industry's traveler numbers decreasing due, the owning more fuel saving technologic airlines which air tickets prices won't influence to be risen, due to reducing oil production and shortage influences . However, due to some airlines which have fuel saving technology, so which can avoid to use more fuel to provide planes to use and which fuel costs will be reduced, then which can provide cheaper air ticket fare prices to compare the non fuel saving technology airlines. The result will cause some not owning fuel saving technological airlines which will lose travelling customers in this global airline travelling market, also the not fuel saving technological airlines need to renew their fuel technology if which want to keep their competitive abilities to avoid to close down their businesses. So, what factors will influence the not owning fuel saving technological airlines profitability to be reduce if the oil shortage factor can not influence their planes energy supply to be reduced to cause air ticket prices to be increased? To answer this question, I shall indicate another financial risk factor how it influences airline industry behavioral change.Also, I shall indicate the financial risk of airline industry evidence from Cathay Pacific airways and China airlines against key determinants of which include interest rate, exchange rate and fuel price risk for the period of January 1996 year to December 2011 year. During this period, these key external factors which were the most serious influence to cause these two airlines choose to change their strategic behaviors. Due to any these financial risks is difficult to predict and it was also changing often, these factors will also affect any airlines stock returns which arise from changing economic conditions, e.g. fuel price movements and fluctuations in exchange rates. These external unpredicted changing factors will attribute to the air tickets cyclical demand, capital investment, fixed costs of labor and landing rights to this global airline industry. Finally, it will cause some airlines need to rise air ticket prices to reduce expenditures increasing.