“Pandemic social work” is a new concept put forward by academia in response to the epidemic, and it also points to a new field in which social work is emerging. Although most scholars mainly study its specific role in the current anti-epidemic, they do not define the meaning and field of this concept clearly, revealing the functional positioning of social work in the anti-epidemic in general, not only for the current global anti-epidemic Work has an adverse effect, and it is not without harm to the construction of this new field. Defining the concept and field of “Epidemic Social Work” needs to start from the nature of social work and learn from the successful experience of social work in other disaster areas. It is preliminarily delineated that epidemic social work is a branch of disaster social work. At the same time, in addition to conceptual clarification and field division, it also attempts to explore the theoretical basis and intervention mode of “Epidemic Social Work,” which is a new field of social work. The construction and current epidemic guidance are of great significance, and its value is obvious.