我國歷經經濟起飛時期到現今經濟漸衰落，加上面臨到經濟高發展期的中國大陸持續不斷威脅之下，如何確保有足夠國防支出額度以維護國家安全及經濟發展是個重要議題。本研究旨在探討1951 年至2017 年期間我國國防支出與非國防支出對經濟成長的時間序列模型。模式中以國防支出變動率、非國防支出變動率、投資變動率及貿易等主要變數，並控制人口數變動率，探討長期動態下所有變數對經濟成長的長期均衡關係。另外檢視在國民所得高低、政黨輪替的不同情境之下的關係。實證結果發現所有解釋變數與經濟成長存在長期均衡關係，以及國防支出變動率對經濟成長有正向顯著助益。

Our country faces two main threats, one is the economic decline after the take-off economic prosperity and the second is the threat from the military power of China, how to ensure a sufficient amount of defense spending to safeguard national security is an important issue. This study aims to explore the impact of national defense spending and non-defense spending on economic growth from 1951 to 2016 by time series method. Changes in national defense spending, non-defense spending, investment rate and trade variables are main variables after controlling the change of population variable to examine the long-term equilibrium relationship between all variables and economic growth under different national income levels and political party rotation. The results show that all explanatory variables have a long-term equilibrium relationship with economic growth, and that changes in national defense spending has a positive and significant effect on economic growth.