Abstract: In order to deeply implement the national cultural digitization strategy, digital technology continuously empowers the continuous inheritance of red genes, expands the dissemination of red culture to cloud space, and widely conveys red cultural information to the people through various modes such as text, images, audio, and video, expanding the digital dissemination mode of red culture. Based on multimodal theory and communication studies, this study takes Jinzhai County, the revolutionary old area of western Anhui, as the research object. From the perspective of the content, methods, and audience experience of digital dissemination of red culture, this study explores the multimodal characteristics of digital dissemination of red culture in the revolutionary old area and explores the development path of digital dissemination of red culture. The article believes that digital technology enriches the multimodal dissemination of red culture, digital scenarios activate the sensory experience of multimodal dissemination of red culture, and digital media coupling promotes multimodal dissemination of red culture.