The opera Maid as a Wife is one of the classic works of Italian composer Pegel Lacey. The birth of this opera laid the foundation for the development of Xi opera. In the opera "The Proud Prisoner", "Maid as Wife" was put between two acts as an interlude, and it was performed in a humorous and funny style. Its content is independent and rich, and its purpose is to adjust the mood and mood of the audience. In the later process of traditional Chinese opera reform, the interlude gradually became independent and developed into a kind of comic opera.

The music of the episode "Maid as Wife" is very beautiful and the comedy effect is excellent. Originally, it was an irony that a maid tried her best to design a play to marry her master for money, but it can be performed as a real folk opera. Therefore, the typical harmony opera became popular, which used solo to imitate the aria in the opera to laugh at those pretentious heroic operas.

Pergolesi's intermittent drama Maid marks the birth of Italian interesting opera. This opera vividly depicts a clever maid, and the music is light and lively, full of life.

When the play was staged at the Italian Opera House in Paris, it caused a debate between enlighteners and conservatives, which was called "clown debate" in history. The former thinks that this interesting drama is to restore nature, while the latter thinks that it destroys the sacred tradition of drama. Maid is not only the pioneer of Italian interesting opera, but also promotes the emergence of French interesting opera.