Under this background, it is of great practical significance to explore the historical changes of the theme song since the founding of the People's Republic of China, grasp its deep aesthetic characteristics and learn from its basic experience, so as to promote the great prosperity and development of the theme song since the new period.
The main melody songs of China, which were born and developed with the horn of the founding of New China, play a very important role in enhancing the influence, credibility and cohesion of the mainstream ideology in China. In the increasingly diversified and complicated contemporary social background, the mainstream ideology is inevitably eroded and impacted.