As a world conservation culture, how to spread and inherit intangible cultural heritage in the digital technology development environment, this study on the paper-cut art as a sample to examine the transmission of intangible cultural heritage under digital technology; This paper makes a comprehensive analysis and research on the comparison of the specific and cultural transmission achievements of paper-cut art under different technical environments and the comparison of coupling degree; Through analysis, it is concluded that under the support of digital technology, As an important asset of our civilization, intangible cultural heritage provides an effective means to strengthen the protection and propagation of intangible cultural heritage. The application of digital media technology can improve the understanding of the paper-cut art of intangible cultural heritage and further lay the foundation for the inheritance of intangible cultural heritage, advanced science and technology and digital technology have positive significance for the modeling and teaching of paper-cut art and the production of works in the development of network; It can better spread culture and art, expand influence and protect intangible cultural heritage, and to a certain extent, it also promotes the country’s economic development and social progress.