Abstract: The recent outbreak of novel coronavirus pneumonia (NCP) mainly causes respiratory tract infections. In severe cases, systemic complications and even death occur, which seriously threatens global public health safety. Because NCP is highly contagious and generally susceptible to the population, correctly understanding its clinical and imaging characteristics is of great significance for clinical diagnosis and management. This article reviews the research advances in the etiology, epidemiology, and clinical diagnosis and treatment of NCP, and specifically analyzes its CT imaging characteristics in different stages.