Digital technology has penetrated all aspects of the cultural industry and has an important role in the development of the industry that cannot be ignored. This paper takes the location entropy data of each province, region, and city from 2008 to 2022 to reflect the level of digital development of art, culture, and creative industries in each province and city, and calculates the difference in digital development of industries between provinces and regions based on entropy weight TOPSIS method. A benchmark regression model was established with the digital development level of cultural and creative industries as the explanatory variable and the application of IoT technology as the explanatory variable, and a benchmark regression analysis was carried out. The global Moran’s I index and correlation test were used to investigate how IoT technology affects the art and culture industry. Finally, the path of IoT technology in empowering the digital development of art, culture, and creative industries was investigated through group analysis. The results show that the regression results of IoT technology on the digital development of art, culture, and creative industries are significant at 1% level and the influence coefficient of this variable is 0.719. The correlation coefficient of IoT technology application and art, culture, and creative industries is 0.866 and the Spearman’s coefficient is 0.748, which indicates that IoT technology has a positive influence on art, culture, and creative industries at 1% level. The impact of digital development is positive. This study provides new ideas for the innovative development of the cultural industry in the era of the digital economy, which has certain practical significance.