Abstract: The outbreak of COVID-19 has triggered a new round of reflection and summary on the medical and health fields. The concept pedigree, value idea and behavioral pattern of the traditional concept of health have blurred the relationships between health,disease, and medicine, which has resulted in the tendency of fragmentation and over refinement. Under the background of Healthy China, it is urgent to study on the concept and essence of “overall health” systematically and comprehensively. Therefore, from the perspective of sociology of health, in the analysis framework of people(individuals or groups) and the environment(internal environment, external environment, and interactive environment), it is believed that overall health is to enable people to adapt to ecological development continuously and proactively in a constantly changing environment, to adjust their own behaviors, and to conduct healthy actions and management in the way of all-round, full-process and full-element, and to present “full” expression of overall, orderly and harmonious with the environment, and the essence of the dynamic balance state. At the same time, to realize the harmony and co-prosperity between human and the overall environment in the healthy space dimension; to realize the dynamic balance of the complete life course in the healthy time dimension; to realize the care from the treatment service to the health service in the healthy human dimension; to realize the overall health of multi-level, multi-element, and multi-dimension through the integration of facts, experience and actions.