Abstract: The global spreading of Covid-19 pandemic has made public health issues become the focus of international attention once again. Based on the theory of social health, and the theory of social network, and using the methods of content analysis, text analysis, and social network analysis, this study compares the social network relation types, structure and the characteristics of network health resources of the International Olympic Committee before and after the outbreak of Covid-19 pandemic, trying to find out the transformation in the action of international sports organizations in the field of health, and putting forward the new role that international sports organizations should take in improving the health level of the general public in a broader sense.It is believed that: in addition to keeping their original social network health resources, and network relations and structure advantage, international sports organizations should actively break their organizational border, construct a “no hole” structure which is more open, flat and decentralized, increase total output of social health resources through a variety of coupling relationship, shift roles from personal health supporters to social health guiders, important bridge of the international community, healthy rights supporters, thus playing a more positive leading role in the global action of social health.