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目的:分析新型冠状病毒肺炎CT表现，结合严重呼吸综合征（SARS）和中东呼吸综合征（MERS）文献复习，总结CT影像特征，提高快速和准确诊断的能力。方法:报道2例确诊新型冠状病毒肺炎CT表现，复习并总结SARS及MERS影像表现文献。结果:2例确诊病例均为急性期表现，CT呈现两肺多发、散在分布磨玻璃影，与SARS、MERS急性期病灶CT表现相似。结论:新型冠状病毒肺炎CT表现与SARS、MERS相似，有一定特征性，并随病程快速变化。急性期主要表现为磨玻璃影和铺路石征。进展期陆续出现小叶间隔增厚、实变。吸收期病灶消散或遗留纤维化、肺结构扭曲和细支气管扩张等。淋巴结肿大和胸水少见。“,”Objective:To analyze the CT manifestations of the 2019 novel coronavirus pneumonia (NCP) combined with severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) literature review, and to summarize the characteristics of CT imaging, so as to improve the ability of rapid and accurate diagnosis.Methods:CT manifestations of two confirmed cases of NCP were reported, meanwhile the literatures on SARS and MERS imaging performance were reviewed and summarized.Results:The two cases of NCP were both in acute stage, the CT imaging showed multiple and scattered ground-glass opacity (GGO) in both lungs, which is similar to the CT performance of SARS and MERS in acute stage.Conclusions:The CT features of 2019 novel coronavirus pneumonia are similar to SARS and MERS. It has certain characteristics and changes rapidly with the course of the disease. In the acute stage, GGO and paving stone sign were the main manifestations. In the acute phase, GGO and crazy paving are the main manifestations. In the progress stage, the interlobular septal thickening and consolidation appeared. During the absorption period, the lesions disappeared or fibrosis was left behind, with lung structure distortion and bronchiectasis. Lymphadenopathy and hydrothorax were rare.