This study was based on annual tracking test of Hefei City 199 junior three students endurance quality, analysis of annual variation characteristics and various stages, to explore the role of senior high school entrance examination sports plus policy driven changes in the endurance quality of junior three students. The main conclusions of the study: the endurance quality of junior three students has improved significantly in the last semester, during the winter vacation is obviously improved; before the physical examination of the senior high school entrance examination has been increased, reached a peak in the physical examination of the senior high school entrance examination, but then it has been decreased significantly; changes of junior students endurance quality level are very significant.