Objective   To  explore the psychological demands of the  nurses who took care of the  patients  with COVID-19  and  to propose corresponding  interventions.  Methods   An  in-depth  interview  was  conducted  with  10 nurses who took care of the patients with COVID-19 and interview data was analyzed by generic analysis. Results Based on the ERG(Existence,Relatedness and Growth) theory,  it showed that the existence needs,relatedness needs and  growth  needs  of  clinical  nurses  coexisted. The  existence  needs  were  mainly  reflected  on  health  needs  and security  needs,  and  the  relatedness  needs  mainly  on  interpersonal  needs,humanistic  concern  needs  and  family needs,and the  growth  needs  mainly  on knowledge  needs. Existence  needs were the  main needs at present,health needs  and  security  needs  influenced  each  other.  Humanistic  concern  needs  were  the  most  important  among relatedness needs,interpersonal needs and family needs were  also growing. The knowledge needs in growth  needs were  very  strong.  Conclusion   The  existence  needs  are  being  effectively  guaranteed,the  relatedness  needs  and growth needs still need to be further improved.