The mass taking part in long-distance exercises becomes the current city important social phenomenon. Through the field investigation, questionnaire and mathematical statistics, this paper analyzes the member's behavior characteristics, which are form the "Zhiyuan Run Club" in Weifang City. The most members exercise independent, initiative and regular, but some members have the overload exercise performance. Membership is keen to participate in the competition. More than half of the members have sports injuries in different degree. The injuries mainly occurred in the knee and ankle joints. Their physical situation has no obvious difference with the ordinary people. On the one hand, we should strengthen the propaganda and attract more city population to join the ranks of fitness. On the other hand, we should strengthen the targeted scientific guidance to this group, for avoiding into fitness misunderstanding.