【Objective】 To study the physical condition and the variation tendency for ages of the primary and secondary school students,and to provide evidence for the intervention measures. 【Methods】 The 1991,2000 and 2010 Chinese National Survey on Students Constitution and Health was used as reference population.There were 3 170,3 573 and 5 277 primary and secondary Han nationality students aged 7 to 18 years old included in this study.Annual physical health data of lung capacity,50 meters run,standing long jump、endurance run were analyzed. 【Results】 The lung capacity,standing long jump and endurance run time were increased beyond of 50 meters run compared by 1991 and 2000 year,instead the lung capacity and standing long jump were decreased,while 50 meters run and endurance run time were increased compared by 2000 and 2010 year. 【Conclusion】 The physical condition of primary and secondary Han nationality students aged 7 to 18 years in Qingdao city from 1991 to 2010 was decreased,It is necessary to provide the prevention measures.