Despite the similarities on the regaining of independence and the subsequent partitioned allied-occupation at the end of World War II, Korea and Austria have developed into seemingly opposite circumstances: prolonged partition and reunification. Such divergence made Austrian type neutrality reunification an important research topic in the Korean Academia. Nevertheless, the previous researches focused on how Austria achieved permanent neutrality reunification, but not on why Austria chose permanent neutrality policy. Therefore, this study assessed the reasons why Austria chose neutrality policy, using the diplomatic papers of the United States and declassified documents of the CIA. The analysis showed that the Austrian type neutrality was not a mere neutrality policy, but a special policy designed and applied to Austria by the occupational powers during the Cold War. Therefore, it is argued that the Austrian type permanent neutrality reunification strategy is less likely to be adaptable as an unification method to Korea.