This book is a practical manual for anti-COVID-19. It is not only with the reference to the result of modern medical science, patients’ situation, but also take the deployment of medical resources into consideration. Content of this manual includes: Medical administration under emergent circumstances, protection and control of hospital infection, clinical practice guidance for diagnosis and therapy, the application of radiation for the examination, laboratory diagnosis, inhabitation of inflammatory cytokines crisis, plasma of patient in the recovery stage, and traditional Chinese medical science etcetera.