Under the guidance of"Health First","People Foremost",the teaching philosophy of "2S" is proposed for College PE so as to stop the dramatic decline of physical health condition of Chinese college students.The concept of "2S" integrates "Smile" with "Sweat",and it emphasizes happiness and success in PE,highlights specialized sports education,scientific teaching load and diversified teaching methods,and attaches importance to student-centered class activity and procedural course assessment.