Abstract: The rapid development of science and technology has profoundly altered the way people live and consume. As a significant aspect of cultural consumption, the marketing approach to entertainment products has undergone a profound transformation in response to the Internet. The traditional marketing of entertainment products is mainly reliant on the use of television advertisements, newspaper publicity, and other offline activities. Though these methods have achieved notable results over time, their reach and marketing power are constrained, making it challenging to meet the diverse and personalized needs of todays consumers. The paper aims to explore the potential of the Internet and online media to enhance product marketing strategies in the entertainment industry in the digital age. Through a comprehensive analysis of literature reviews, case studies and data studies, this paper explores the concept and current status of online marketing, as well as the application of online marketing in entertainment industries such as movies, music and games, and how existing data analysis can be used to help the modern entertainment industry optimize its existing online marketing strategies. The results show that by rationally applying online marketing strategies and adapting them to local conditions, not only can audience and user engagement be increased, but sales performance and brand image can also be significantly improved.