Flipped classroom has been a heated topic in the field of education and technology both in China and abroad since 012. Its influence has become increasingly widespread,constantly changing the classroom teaching. The paper intends to contrast the ey differences between Chinese and American flipped classroom based on an analysis of SACA -teaching structure,teaching activity, aching condition and teaching assessment. It also proceeds with five breakthroughs to explore the implications of college English aching reforms in our country from the differences between Chinese and American flipped classroom,providing the feasibility to real- e the high -quality development of the localization of flipped classroom.