At the beginning of the 20th century, with the rapid development of digital technology, network technology and communication technology, new media showed a new media form that was significantly different from traditional media. Under the background of the continuous transformation and optimization of China's economic structure, the new media industry has been integrated into all fields of China's social economy and people's livelihood. In this context, the promotional films of new media use the audio-visual advantages of concise content, short space, easy to understand and diversified forms of expression to stimulate the audience's interest and attention to Hanfu culture. "Hanfu fever" is one of the most concerned social phenomena at home and abroad in recent years. The creation of "Hanjia clothes" takes advantage of the easy-to-understand characteristics of propaganda films in the media communication in the network era, and is based on film and television expression. show the history, tradition, evolution, current situation of Han national clothing and its influence on modern social culture. In order to express the love and dedication to Chinese traditional clothing culture, through modern film and television technology, Hanfu is used as the carrier to make more people pay attention to Hanfu, pay attention to and understand the excellent traditional culture, and promote the prosperity of traditional culture. At the same time, the use of new media propaganda methods, the combination of a variety of sports shots for comprehensive creation, to explore the creation of traditional cultural promotional films. Through the academic analysis and research on the characteristics and functions, development status, types and creation methods of the Hanfu cultural propaganda film, the creation of the "Hanjia Clothing" propaganda film is carried out. In the study of creative theory, the planning, artistic expression and post-editing of the propaganda film are analyzed and sorted out. Through the summary of creative techniques, it has a certain reference role in the creation of the same type of propaganda film.