“Andai” is currently the most famous ethnic dance in the HureQi area of inner Mongolia, China. The connechion with religion old times is deep, in which the ceremonial aspects of “Andai” centers on song and dance, and it once was frequently carried out. In the “Andai” songs, Musical Dialogue assumed an important position. However in the current version of “Andai”, called “New Andai”, dance has become a central feature, and therefore the Musical Dialogue has died out. It is thought that the effects of the political regulations, the social environment, and the evolution of religious sentiments in which “Andai” Musical Dialogue was born have become the environment in which “Andai” musical dialogue has been lost.