The method of singing seems to be a technical problem,but its application is related to the choice of style and aesthetic consciousness of performers.For national opera performers,the innovation and development of national vocal music lies in the pursuit of diversification of singing methods.The operas The Daughter of the Party,The Border Town,and Azalea,which are composed respectively of metrical-change-form(ban-qiang-ti)thinking,melody thinking and symphonic thinking,are three national operas with different styles.The shaping of their protagonists require diverse national singing methods.