From the perspective of international law, the outer space is the common property of mankind, mankind should be rational use of outer space in a balanced national comprehensive strength in fair condition, in order to development of economy, technology and society play a positive role. 从国际法的角度,外层空间是全人类的共同财产,人类应在公平状态下、在各国综合实力的均衡上合理地利用外层空间,以期对各国经济、科技及社会的发展发挥积极作用。