Coronavirus (CoV) (2019‐nCoV) is a large, enveloped, positive‐sense, single‐stranded RNA virus. The abnormal outbreak of 2019‐nCoV in Wuhanwarns of the risk of CoV (2019‐nCoV) to public health which causes viral pneumonia outbreak. In our review, we will discuss the biology of CoVs andthe potential risk of the novel CoV (2019‐nCoV) and guide us to strategic objectives for controlling the virus.