Objective To understand the current situation of scientific exercise literacy of middle school students,including basic knowledge,attitude,skills and exercise habits.Methods One middle school was selected from each of Shulan county in Jilin province,Wuxi city in Jiangsu province and Chengdu city in Sichuan province,including two junior high schools and one senior high school.Two classes were randomly selected in each grade from each of the three schools.All students in the selected classes took part in the study.1 360 questionnaires were distributed and all were collected,1 355 of them were qualified questionnaires.The questionnaire contains knowledge (12 items),attitudes (10 items),skills (1 items) and habits (3 items).The one who correctly answered 80％ or more of the questions was considered as having the competent literacy.Results Among middle school students,27.4％ had the scientific exercise literacy,47.5％ had the knowledge literacy and 49.0％ had the attitudes literacy for scientific exercise.68.8％ reported regular exercise,but only 12.5％ had exercise habits.Conclusion The level of scientific exercise literacy among middle school students is low,suggesting that multiple measures should be taken to improve scientific exercising knowledge and concept among middle school students,helping them to develop a scientific exercising habit and improve their literacy of scientific exercising.