The Baroque period, which originated in Italy in the second half of the 16th century and reached its peak in the 17th century, represents a significant symbol of the mainstream cultural characteristics of the 17th and 18th centuries. The music art of this period has a unique symbolism and guidance, both in the performance and the work itself reflects the characteristics of this era. This study mainly studies the style and characteristics of Baroque Music: first, the humanistic nature of the music subject, which emphasizes human emotion and performance; Secondly, the lyrics of Baroque music are usually literary and poetic; Then there is the emotionality of melody change, which often conveys profound emotions; Next is the diversity of forms of expression. Baroque music is famous for its various forms and structures; Finally, the flexibility of accompaniment texture, which allows musicians to express emotion and creativity in performance. Finally, by discussing the emotional aesthetics in Baroque music, we can deeply understand the emotional expression and rhetorical use in music, and then learn from the experience of this special historical period to provide beneficial enlightenment for the development of modern music.