The saxophone is made of metal, strong and weak, comparable to other brass music in sound strength, and is also beyond the reach of other woodwind instruments. It has the characteristics of woodwind instruments in sound quality and has the brightness of metal. The saxophone is not only good at classical music, but also better at jazz and light music. When people mention jazz, the first instrument to think of is the saxophone. The biggest characteristic of jazz is improvisation, which makes the strong and weak beat upside down in the performance, adopts the technique of continuous syncopation, makes the rhythm change infinitely, the timbre is full of drama, both fierce and mad and deep, both funny and sad. The saxophone, in terms of its timbre, played slippery; vibrato, spitting; and overblown features, adapted to the needs of the greatest characteristics of jazz improvisation. Therefore, improvisation has also become the performance characteristics pursued by saxophone players. Because its structure is designed by the scientific principle of pom flute. Therefore, its mechanical system is reasonable and the application of machine parts is flexible. So it can play difficult music like flute and clarinet. At the same time, compared with other woodwind instruments, it has its unique characteristics in playing slippery, tremolo, spitting and overblowing.