Purpose: With the deepening of global aging, how to control and prevent the health crisis of the elderly has become the focus of global attention. To address this problem, a large number of studies have been conducted around the world, and physical activity has been shown to be closely linked to health risks in the elderly. In order to sort out the results of many researches, this paper made a scientometrics analysis of the relevant researches in the past 10 years. This can not only systematically understand the current research trend, but also serve as a reference for subsequent research. Method: This study adopted scientometrics and visual analysis methods, thus CiteSpace Visualization based on Java programming was employed as the main tool of the study. Literature searched from Web of Science database from 2010 to present and was used to show the topic evolution of research related to the research topic after analysis. Results: According to the statistics on the time and quantity of the literature on physical activity and health risks of the elderly, it was found that the literature had a stable increasing trend from 2010 to 2012, from 2013 to 2015, from 2016 to 2018, and from 2019 to 2020. Through the analysis of the co-occurring map of institutions on physical activity for elderly, it was found that colleges and universities were the core in the institutions in this field. Geriatrics & Gerontology, Public Environmental & Occupational Health, General & Internal Medicine, Medicine, Nutrition & Dietetics and Physical provided basic for the researches on physical activity and health risks of elderly. The research hotspots were showed as physical activity, risk, risk factor, Older adult, elderly, exercise, mortality, health, prevalence, association. This indicated that the researches on physical activity and health risk of the elderly at this stage mainly focused on the health and physique of the elderly. In the second stage, there were abundant experimental studies on the physical function of the elderly, the physiological dimension of different types of senile chronic diseases, and the risk factors of disease prevention. In the third stage, the researches on the elderly personal health behavior and lifestyle, social support and health promotion began to be prominent. Conclusion: This paper took Web of Science as the data source and used CiteSpace, a scientific measurement tool, to draw the knowledge map of physical activity and health risks of the elderly scientifically and rigorously, and systematically analyzes the basic characteristics, research hotspots and topic evolution of this research field. However, there are still some limitations in the time period, database and search scope of the research results, which we hope can be solved in the follow-up research.