Abstract: The declaration of intangible cultural heritage is an important measure for the protection of Chinese intangible cultural
heritages, and also a kind of institutional arrangement from the top down so as to arouse the national consciousness and actions of
protecting intangible cultural heritage. The system of declaring intangible cultural heritage is an actual generative mechanism of public
culture, and the process of declaration is also the process of transforming intangible culture from folk culture to public culture. Viewed
from the point of declaration of Midu Huadeng opera and the process of Midu Huadeng cultural reconstruction, there are a lot of
problems in the system concerning evaluation standards, declaration procedure, folk participation, assessment system and so on.
Solving these problems can inspire people's enthusiasm of protecting intangible cultural heritage and cultivate people's cultural
consciousness, and its effectiveness can be played fully in Chinese intangible cultural heritage protection.

Key words: intangible culture, the system of declaring intangible cultural heritage, Midu Huadeng Opera, cultural reconstruction