Different from the regular migration some migrants want the opportunity to move further to a new country rather than settle down. However, this peculiar “transit migration” is only studied based on small-scale surveys, which is regional and always controversial. To reconcile the contradiction of the fact that systematic issues such as immigration analysis need global large-scale data, this paper constructs a multilateral migration network and studies its statistical characteristics to get the probability of being transit countries and routes. It is quantified by irregular triangle relationships in the global migration network, and shows some popular springboards mentioned in prior research studies, such as Canada and Australia acting as the global hubs, and some typical transit countries directing to Europe, as Russia, Turkey, France and Germany. Besides, it also reveals and quantifies several hidden possible transit stations that were seldom noticed before, like South Africa, Israel and some hubs of local refugee flows in Africa. Exploring these possible routes and key notes might shed light on policy development, and from the viewpoint of physics, these results provide an objective view to transit migrants and countries that is free of prejudice and political attitudes.

与正常移民不同，一些移民希望有机会进一步移居新国家而不是定居。然而，这种奇特的“过境迁徙”只是基于小规模的调查研究，具有地域性，且一直存在争议。为了调和移民分析等系统性问题需要全球大规模数据的矛盾，本文构建了一个多边移民网络，并研究其统计特征，得到成为过境国和过境路线的概率。以全球移民网络中的不规则三角形关系进行量化，展示了之前研究中提到的一些流行跳板，如加拿大和澳大利亚作为全球枢纽，以及一些典型的直达欧洲的过境国，如俄罗斯、土耳其、法国和德国。此外，它还揭示并量化了几个以前很少被注意到的隐藏的可能的中转站，如南非、以色列和非洲当地难民流动的一些枢纽。探索这些可能的路线和关键说明可能会阐明政策制定，并且从物理学的角度来看，这些结果为过境移民和没有偏见和政治态度的国家提供了客观的看法。