Coronavirus disease (COVID-19) is an infectious disease that has dramatically spread worldwide. Regarding the safety issues of industries, there is a requirement of dealing with the emergency risk in the period of urgent situations. In this work, we proposed a systems-theoretic approach of the two-stage emergency risk analysis (ERA) based on the systems theory, that is the System-Theoretic Accident Model and Processes (STAMP). The two-stage ERA includes the normal to emergency risk analysis (N2E-RA) and emergency to normal risk analysis (E2N-RA). Besides N2E-RA, we advocate that E2N-RA is also an important and indispensable part of ERA. We elaborated the characteristics of N2E-RA and E2N-RA, separately. Eventually, based on our analysis, we provided recommendations for decision makers in preventing and controlling industrial accidents in the period of COVID-19.

冠状病毒病 (COVID-19) 是一种在全球范围内急剧传播的传染病。对于行业的安全问题，有在紧急情况下应对突发事件风险的要求。在这项工作中，我们提出了一种基于系统理论的两阶段紧急风险分析（ERA）的系统理论方法，即系统理论事故模型和过程（STAMP）。两阶段 ERA 包括正常到紧急风险分析（N2E-RA）和紧急到正常风险分析（E2N-RA）。除了N2E-RA，我们提倡E2N-RA也是ERA不可或缺的重要组成部分。我们分别阐述了N2E-RA和E2N-RA的特点。最后，根据我们的分析，