The development of globalization has promoted the increasingly frequent cross-border flow of population. Few countries can completely stay out of the wave of immigration. Most countries play the roles of sending，importing and transit countries at the same time. The characteristics of non-nationals，high mobility and high heterogeneity of immigrant groups make all countries not only enjoy the “immigration dividend”，but also face the severe challenge of immigration. Therefore，the issue of international migration has become one of the important governance issues of the international community and governments. Recently，COVID-19’s overseas entry risk has broken the territorial trap in traditional immigration governance，forcing immigration governance to upgrade and transform from concept，method and path. This upgrading and transformation is reflected in the in-depth discussion of the theoretical connotation of immigration governance，the model types of immigration governance and the applicable situations. At present，China’s immigration governance has internal problems such as inadequate governance concept，single governance model and limited governance strategy. It also faces many external challenges coming from four levels of wide source，subculture，extrajudicial and sudden. China’s immigration governace could be improved by enhancing internal governance capacity to respond to external challenges，and actively participating in global migration governance and transnational multilateral cooperation mechanisms so as to promote the safe，orderly and dignified flow of Chinese immigrants.