Chest radiographs have a certain auxiliary diagnostic value for novel coronavirus infections. For patients with early or mild novel coronavirus pneumonitis, the inflammatory exudation of the lungs is often not severe, and chest radiographs usually cannot detect obvious abnormalities, so CT chest examination is the first recommended examination for these patients. In addition, if there is a high suspicion of novel coronavirus pneumonia, in addition to clinical symptoms, epidemiological data, it is also necessary to improve the serum nucleic acid test or throat swab nucleic acid test in patients with suspected novel coronavirus, as well as improve the chest CT. usually, in patients with severe or critical novel coronavirus pneumonia, there will be some typical manifestations of the chest radiographs, such as inflammatory oozing or glassy changes. The chest radiograph is usually typical for patients with severe or severe forms of NCPV pneumonia, such as inflammatory exudates or glassy changes. Therefore, chest radiographs are useful in the diagnosis of novel coronavirus pneumonia, but they cannot be relied upon to fully diagnose novel coronavirus infection.