How long the treatment process of new coronavirus pneumonia takes has individual differences and cannot be generalized. Usually, it takes 1-3 weeks for patients with mild and common type, and 1~2 months or even longer for those with severe and critical type. At present, the new coronavirus pneumonia in China can be divided into four types, from mild to severe, which are light, ordinary, heavy and critical. 1. Mild and common type patients: Most patients with neocoronavirus pneumonia are mild and common type. These patients have mild symptoms and may have mild upper respiratory symptoms and fever. The treatment process usually takes about 2 to 3 weeks. After the patient’s symptoms have disappeared, lung imaging has returned to normal, and the pathology has become negative, the patient can be discharged from the hospital, but still needs to be isolated and observed according to the local policy. 2. Severe and critical patients: the condition is relatively severe and may be accompanied by chest tightness, breath-holding, dyspnea, or even respiratory failure. A small number of critically ill and severely ill patients need to be admitted to ICU for respiratory support. The condition of these patients is complex and usually accompanied by other underlying diseases, and the treatment cycle takes 1~2 months or even longer. In short, it is impossible to determine how long the treatment process for patients with new coronavirus pneumonia will take, but rather the duration of treatment varies from person to person depending on the severity of the patient’s condition.