Since the 20 th century, qualitative changes have taken place in human understanding of strings. The string is the vibration, and the vibration will produce waves, which shows that the waves constitute a rich and colorful world, which provides an ideological basis and technical method for the re-understanding of beauty. The research shows that there is a profound internal relationship between natural beauty and the wavelength (or frequency) of matter, and there is a coupling relationship between the natural frequency of objects and the frequency of human beings. beauty is caused by the interaction between the frequencies of different types of spectra and human beings.
 Different perceptions of beauty and ugliness of the same person are caused by different frequencies of aesthetic subjects is incorrect according to this passage.