The vocal music of the Chinese nation is colorful and diversified. China traditional national vocal music includes folk songs, operas, rap and so on. There are many different forms of singing in various categories. China's diversified vocal art can make China people proud. However, because China's vocal music art did not form a high theoretical summary and lacked a complete discourse system as in the west, after introducing the scientific singing method advertised by the westerners, we devalued our long-standing vocal music cultural value. Some people think that traditional folk singing is the natural expression of sound, and there is nothing to learn; Traditional Chinese opera has a confused singing style, which has nothing to do with singing; The singing method of Quyi is close to talking, too simple, etc. These statements are either ignorance of traditional folk singing or lack of confidence in traditional folk singing. In fact, China's traditional folk singing is profound and worth learning. At present, regarding the development direction of national vocal music, many media are commenting and criticizing the "one thousand people, one cavity for ten thousand people" in the national vocal music scene. Singing style lacks individuality, especially in voice, showing a trend of convergence, almost the same voice and style. Compared with the older generation singers, they are weak in singing style and voice color performance. However, today, with the progress and development of society, people's ideas, thinking and life rhythm are changing, and the habit of pursuing and appreciating beauty is also changing. The aesthetic of vocal music art is also changing from simplification to diversification, which also puts forward new requirements for national vocal music. The creation and singing of vocal music works must have a distinct sense of the times, so as to adapt to the development and needs of the times and constantly meet the aesthetic needs of the audience and singers themselves. With the development of the times and the changes of society, more and more new vocal music art forms begin to bloom with charming brilliance. It is a powerful proof that the original ecological vocal music has attracted people's attention. From the colorful development of China's national vocal music to the unique status quo on the national stage, this paper puts forward the necessity of the diversification of national vocal music, and then puts forward the inevitable trend of the diversification of national vocal music in today's global economic integration and cultural diversification from the singing method of "everyone is beautiful" and the original ecological singing method that appears on the national vocal music stage in China. Finally, the ways to realize diversification are discussed systematically. 2 1 century is a century of global multicultural coexistence. On the basis of our national vocal music tradition, we should think about the innovation of different levels, different forms, different tastes and different singing methods from the perspective of openness, openness and pluralism, so as to enrich the connotation of our own vocal music art. China's national vocal music, thanks to the efforts of China vocalists, makes science and diverse artistic forms coexist. It is not only loved by the general public, but also going to the world.