This paper takes the internet audio-visual industry in the digital culture industry as the research object，combines the relevant development of science and technology with the change of industry model，and analyzes the production，communication，consumption model and characteristics of the internet audio-visual industry in different stages. In the Web 2.0 stage，the internet audio-visual industry is led by the production model with cultural creativity as the core，and the “cultural attribute” is dominant；in the mobile Internet era，technology is the dominant factor in production，communication and consum-ption，and the “science and technology attribute” is stronger，and science and technology companies also occupy the leading position in the internet audio-visual industry. In the future，with the development and application of 5G，big data，artificial intelligence and related technologies，the production，communication and consumption of internet audio-visual industry will have the “dual attribute” of deep integration of science and technology and culture，and will develop more new formats and models in the era of new infrastructure construction.