2016年日本通過宇宙2法，揭櫫推動民間升空商機、遙測數據商業等目標，目的在於擴大日本太空商業活動與世界太空市場接軌。其次，2017年美國NASA公布「阿緹米斯計畫」（Artemis program），基於美日同盟和美日安保，日本也積極參與美國主導的月球計畫；日本第5期《宇宙基本計劃》（2023∼2033年）表明日本邁入國際太空合作的動向，並且推出「宇宙安全保障構想」。就此，本文整理日本對應新太空時代的動向、太空與安保、太空民主聯盟等觀點，採用理性抉擇理論的「偏好—機..

In 2016, Japan passed the Space Act which aims to promote private space launch opportunities and the commercialization of remote sensing data, with the goal of expanding Japan’s space commercial activities and aligning with the global space market. Secondly, in 2017, NASA announced the Artemis program (Lunar Program). Based on the U.S.-Japan alliance and U.S.-Japan security arrangements, Japan is also actively participating in the U.S.-led lunar program. The 5th Basic Plan for Space Policy (2023~2033) indicating Japan’s move tow..