The connotation of public health and well-being, a goal of social development, changes over time, and this kind of dynamic social needs have promoted the continuous evolution of urban parks. This article traces the interaction between British urban parks and public health topics. Based on the social background, political-economic context and health conditions in which Great Britain is situated, public health appeals have experienced six phases: prevention of infectious diseases, solution of urban environmental problems, attention to leisure sports, exploration of social integration and promotion of mental health, cultivation of healthy lifestyles, and the construction of healthy social and ecological systems. Accordingly, urban parks have experienced isolation-based site selection, forming wind corridor, adding sports facilities, establishing communication space systems, refining target population space, constructing park-habitat network layout. This research finds that the planning and design of British urban parks from the perspective of public health and well-being has emerged from the establishment of urban parks to the construction of park cities, from the attention to individual physiological health to the pursuit of individual, society and ecosystem health, from broadly promoting health to boosting health for some specific population. This research aims to draw on Britain’s experience in this field to explore the way of urban park planning and construction in China under the “Healthy China” planning strategy.