Since the outbreak of coronavirus disease 2019 (COVID-19), traditional Chinese medicine (TCM) has played an important role in the frontline of epidemic prevention and control. At present, the theory of COVID-19 in the domestic TCM community is in a state of booming. This article summarizes and analyzes the main viewpoints of the representative TCM experts on COVID-19, such as disease name, disease nature, pathogenesis, treatment principles and methods, and prescriptions. Most experts believe that COVID-19 belongs to the “wet poison epidemic”. “Wet poison” is the pathological core of COVID-19, which plays an important role in the pathogenesis. However, some experts have proposed to explore the pathogenesis of COVID-19 from the perspectives of “excessive internal heat”, “Qi failing to control body fluid”, “warm heat” and so on. In addition, experts also have their own unique opinions on the disease location and the nature of COVID-19, which directly affect the treatment principles and methods and the choice of prescriptions. Based on the current research, we propose that it is necessary to understand the pathogenesis from the occurrence and development of the disease, to distinguish the different pathogenesis from the perspective of “three-cause measures”, attach importance to blood stasis in prognosis of the disease, and achieve the unity of subjectivity and objectivity, personalization and standardization in TCM differentiation and treatment.