The main purpose of this study is to lay the groundwork for establishing the local music history of Chiayi City. This paper describes the development of the choral music of Chiayi City and explores its relationship with the sociocultural background of the city. More details about the music activities in the city are also provided. It is wished that such a study would contribute to the establishment of the musical history of Taiwan. This paper is divided into five parts: 1.The purpose of this study; 2.A description of the historical development in music in Chiayi City, including music education and the impact of musical activities on local culture; 3.The organization and development of choral music in Chiayi City, including analyses of its history, function and trend, based on field investigation data; 4.The benefits brought by the chorus festival on local culture; 5.Summary and recommendations.