The cycle of China’s export to America was identified based on the turnover of China’s export to America,its growth rate and GDP of America from 1979 to 2010.The Kitchin cycle was explained according to the growth rate of China’s export to America directly,and HP filter was used to analyse the Juglar cycle,then a deep research on its trend of long period was carried out with cointegration test.The study shows that China’s export to America has gone through 8 Kitchin cycles,and 3 Juglar cycles.Most importantly,the same features appear between China’s export to America and GDP of America.