The volume of cargo and passenger traffic of airlines is increasing in Kaohsiung International Airport in the recent years. Due to the rise of environmental consciousness, the aviation noise pollution will lead to public disputes. The transportation bureaus have granted subsidies and compensation on noise prevention in areas around the airport, the subjects are aviation noise prevention zones announced by local governments. Therefore, the classification of aviation noise prevention zone determines the receipt of subsidies and compensation, thus, is concerned by the residents lived in the airport neighboring areas. This study focused on Kaohsiung International Airport, and used the aviation movement data of 2005 as the standard for noise integration model simulation, to understand the variation of the aviation noise in day time and night time under different synarios , as well as the effects on the scope of noise prevention zones. Take Project 1 ( annulling curfew) as an example, the INM simulation of day time and night time aviation noise under various synarios showed that the aviation noise prevention zone of the first scale expanded 10.18 km² as compared to the year of 2005, 4.57 km² for the second scale,and 1.99 km² for the third scale. The estimated Ldn in the target year of 2121 were as follows: the noise volume for susceptible objects of east 27 runway increased 4.7¡ã5.3dB(A), objects near the west side 09 runway increased 3.1dB(A), and objects near the south and north sides increased 3.3~4.8dB(A). In general, the affected area of Project 1 (annulling curfew) ranks the largest, Project 2 (maintaining curfew) the second, and Project 3 (not lengthening the runway) the smallest. As for the affected scale of the aviation noise, KueLing Elementary School and KaoFung Junior College ranked the highest, ZhongZho Elementary School the second, diesel station the lowest. Yet, the actual aviation noise should refer to the results of the noise monitoring station.