The purpose and function of mental health education lecture on optimizing emotional release pressure in primary schools combine all kinds of activities of primary school students with positive emotional experience. Promote the all-round development of pupils' personality and psychology. Primary school students' mental health education is not conducted in isolation, but subject to the overall goal of primary school students' quality education, that is, improving national quality and national innovation. Combine all kinds of activities of primary school students with positive emotional experience. Pupils often have a variety of emotional experiences in various activities, especially in learning activities.