摘要冠状病毒(Coronavirus, CoV)是一类古老的、广泛存在的、对人类和其他动物健康构成严重威胁的传染病病原体。目前已鉴定能感染人的冠状病毒(human CoV, HCoV)共有7种。已证实：这些可感染人的冠状病毒均为动物源性的人畜共患病原体，通过跨越种间屏障，从自然宿主以直接或间接的方式"跳跃"到人群，并进一步造成人际间的传播和流行。冠状病毒刺突蛋白(Spike, S)S1亚基上的受体结合区(receptor binding domain, RBD)是决定冠状病毒跨种传播、侵入宿主的关键因素之一。本文就近年来7种HCoVs传播路径以及介导跨种传播的RBD结构研究进展进行总结和分析，以期获得对冠状病毒跨种传播机制的认识，为我们应对潜在的新型冠状病毒跨种传播事件，提供有效的防控和治疗策略。

abstractsCoronaviruses (CoVs) are a group of ancient and common viruses, posing a severe threat to the health of humans and other animals. Currently, seven human CoVs (HCoVs) have been identified. They are all animal-derived zoonotic pathogens that jump the species barrier from their natural host animals to humans in a direct or indirect manner and lead to interpersonal transmission. The receptor binding domain (RBD) on the S1 subunit of CoV spike (S) protein is one of the key factors determining the cross-species transmission and the invasion potential. This review summarized and analyzed the transmission modes of seven HCoVs and the available structures of HCoV-RBD that mediated the cross-species transmission in order to better understanding the mechanism of CoV cross-species transmission and providing valuable knowledge in response to the potential cross-species transmission of novel CoVs in the future.