Continuous renal replacement, therapy (CRRT) is a new term of blood purification technology with vari ous modes, which can provide kidney replacement., capacity control, endotoxin adsorption, cytokine removal, carbon dioxide removal and other functions. It can be used for the treatment of patients with Corona Virus Disease 2019 (COVID-19). However, there are eertain risks and related complications during CRRT, so the application of CRRT should be carefully in COVID-19 according to the objective needs of patients. This paper mainly states- the authors- different under standings and views about the application of CRRT in COVID-19.