The purpose of the article is to explore the effects of Sichuan opera singing on music majors’ vocal skills, focusing on three key aspects: pitch test, assessment of rhythmic perception, and emotional expression. Through a quasi-experimental design, 100 music majors were selected as research subjects and divided into an experimental group that received Sichuan opera singing instruction and a control group that received traditional vocal instruction. The results showed that compared with the control group, the experimental group receiving Sichuan opera singing teaching showed significant improvement in pitch mastery, rhythm perception, and emotional expression.