Gezi Opera is special in our national field of opera. Its specific characteristics are as follows: First, Gezi Opera is the only opera that formed in Taiwan among more than 300 operas genres in China. Secondly, Taiwan is an immigrant society with the greater part of immigrants coming from the southern part of Fujian. Therefore, what the music, its titles, performances and the other aspects of Gezi Opera reveal is not only Taiwan local culture, but also mainland China's original culture. It is in fact the cultural link to connect both banks of the Taiwan Strait; moreover, nearly 40 years of isolation caused the same kind of opera to develop into different forms under different politics, economies, and cultural circumstances. It shows that the humanism environment plays an important role in the development of opera .As a result, the study of the original source of the music for voices in Gezi Opera has surpassed the study itself of one local opera and it has become more significant in this fields.The full text is composed of 7 chapters. Chapter t makes a brief summarization of the history of the Gezi Opera's music. Chapter 2 to 6 is the main body of the thesis, which studies the evolutionary process and the features of the music for voice in Qizi Diao \ Taiwan's Zanian Diao\ Zasui Diao\ Ku Diao and Za Diao. In view of humanism environment Chapter 7 probes into the reasons why the Gezi Opera becomes a different school of music on the two banks of the Taiwan Strait.The thesis analyzes the music of Gezi Opera using the multi-subjects viewing angle, and aims to understand and grasp the law of Gezi Opera's music more objectively.