After the 9/11 terror attack in America in 2001, the world is modifying laws related to aviation safety for measures of air terrorism and crime prevention, and is reinforcing professionals. However, Korea, the key point of the aviation distribution in Northeast Asia, air terrorism began mainly through the isolation of North Korea and conflict in the international society and these cases are : the kidnapping of Chang-rang aircraft of Korean National Airlines(1958), the kidnapping of YS-11 of KAL(1969), kidnapping of F-27 of KAL(1971), emergency landing of B747 of KAL of Murmansk attack(1978), attack of MIG-23 on KAL007(1983), attempted case of the kidnapping of B727 of KAL(1985), destruction of KE858 of KAL(1987), attempted case of the kidnapping of B747(1988), attempted case of the kidnapping of KAL388(1993), and the current isolation of North Korea is threatening Northeast Asia and is intensifying tension. Furthermore, overseas tourists are rapidly increasing in Northeast Asia including Korea and the use of aircraft is expanding, so the safety of Northeast Asia is severely threatened through terror and crimes in the airplanes and airports. Therefore, this study randomly selected Korean tourists who used airports and planes and investigated recognition in air terrorism outbreaks, and first, as the place of the occurrence of air terrorism and crime, 75.1% said airports and 24.9% said on board. Many of these thought air terrorism and crime could occur easily before boarding as it is freer and there is a big floating population so it is easier to hide bombs in baggage. Second, the tourists thought the cause of air terrorism and crime outbreaks was because of the insecurity of the North Korean government with 86.9%, and 13.1% in the conflict of international society. Recently, because North Korea is suffering from the 3 generation leadership, nuclear development, lack of food, and the restriction and isolation of the international society, the tourists thought the internal conflicts that rise can lead to terror in South Korea. With the discussion point of this study, Korean tourists thought the cause of air terrorism and crime outbreaks in Northeast Asia was North Korea. However, these kinds of air terrorisms and crime can kill many lives at once and while these outbreaks can lead Northeast Asia into war, North Korea has committed many air terrorisms and crimes in the past. Therefore, the isolation of the international society which began from the nuclear development of North Korea, must make an effort not to threaten Northeast Asia into air terrorisms and crimes but for the peace of Northeast Asia.