In order to reveal the hot topics and revolution progress for Chinese physical activity researches and to master the knowledge structure in the field of Chinese physical activity researches, visualized analysis is conducted on year distribution, keywords and so on on 513 literatures related to physical activity in core journals and CSSCI collected in CNKI by using CiteSpace software. The results show that after 2006, Chinese physical activity research field demonstrates rapid development trend, that the research hot topics mainly focus on physical activity, energy consumption, reliability measurement of testing tools, relation between physical activity and physical health, the application of accelerometer to physical activity research and so on of teenagers, and that physical activity environment as research advancing front began to be noticed by scholars.