Personal vocal music teaching is usually called vocal music class, and its teaching mode is one to one. In this teaching mode, vocal music teachers can not only understand students' own singing situation, but also clarify students' understanding of music, and finally realize teaching students in accordance with their aptitude. Although individual vocal music teaching is flexible and targeted, most preschool children lack music foundation and have poor comprehension and understanding of music. Vocal collective class is collective teaching, which takes a class of students as a whole. This teaching model imitates the theory teaching model of large class, which allows more students to participate in learning in a certain period of time, reduces the situation that teachers explain the same content many times, not only helps to improve teaching efficiency, but also reduces the cost of running a school, more effectively solves the problem of insufficient teaching teachers and increases the opportunities for students to learn from each other. This teaching mode is mainly suitable for students with poor music foundation and relatively low singing ability and level. Under this teaching mode, students' comprehensive ability can be improved, so vocal group lessons are widely used in modern preschool education.