Through the methods of literature, observation and investigation, this paper studies the current situation and Countermeasures of community sports in China under the background of national fitness. The results show that there are several problems in community sports in China: the lack of collaborative mechanism in the nationwide fitness network; the majority of the elderly participate in community sports, and the form of sports is relatively monotonous; the sports venues and facilities in the community are insufficient; the public sports venues are not enough. Put forward countermeasures: improve the community sports network system; strengthen the school sports venues, large sports venues open to the outside world; strengthen the training of community sports instructors; strengthen the publicity of community sports, enhance the awareness of sports participation of residents.