Objective　To understand the real psychological experience of family members of children with fever hospitalized in Department of Pediatric Pulmonology, Xinhua Hospital, during corona virus disease 2019 (COVID-19) epedemic, and to provide reference for psychological intervention strategies and improvement of medical treatment process. Methods　From January to February 2020, 12 family members of hospitalized children were selected by purposive sampling to conduct semi?structured in?depth interview. The interview data were analyzed by using Colaizzi 7-step analysis method, and the themes were summarized. Results　After repeated reading and thinking, two categories and 8 themes were extracted.  The first category was negative psychological experience of family members of children before hospitalization, namely fear or anxiety about a possible COVID-19, fear nosocomial infection, feeling remorse and regret for the child's illness, and anxiety about access to medical care or follow-up. The second category was positive psychological experience after medical treatment, that is, to eliminate the fear of children infected with COVID-19, to alleviate the fear of nosocomial infection, to be grateful for the healthcare workers, and to cherish the present life. Conclusion　Under COVID-19 epidemic, the negative emotions of family members before medical treatment were gradually alleviated or eliminated after medical treatment. Hospital managers should pay attention to the psychological pressures of family members, do a good job in epidemic prevention and control publicity and medical treatment process improvement, give care and support to children and their families, and enhance the treatment experience.