The topic of this research is the Soprano Aria〈Mi chiamano Mimì〉of the opera《La Bohème》written by Giacomo Puccini. Before singing, a singer must have some understanding to the background of the composer’s creation, the style of his music, the structure of the music and ways of applying skills. To further understand this Aria ones have to be aware of the impact of realism on operas in 19th century. The life of composer Giacomo Puccini and his composing stytle also need to be understood in studying his music the content of the opera《La Bohème》, and musical characteristics of〈Mi chiamano Mimì〉. From the basic elements of the musical structures from the singing style. Furthermore, one can compare the differences among singing interpretation to this Aria by different singers. And in turn one comes to know how to better express composer artistical styles.