摘要：This paper conducts an in-depth analysis of the cost-beneft relationship in content production and dissemination within the media industry, combining theoretical frameworks with empirical case studies. It begins by examining the current development status and trends of the media industry, highlighting the transformative shift from traditional to new media, technological-driven innovations, and globalization. The study then delves into the economic characteristics of media products, market structure theories, and the application of cost-beneft analysis in enterprise management. Detailed cost analyses cover both direct costsand indirect costs in content production, as well as channel construction costs and promotion costs in content dissemination. Key infuencing factors, such as content type, production scale, target audience, and communication timing, are systematically discussed. The beneft analysis evaluates economic impacts and social impacts . Acase study of ByteDance illustrates practical applications of cost control strategies and benefit enhancement measures . Finally, the paper proposes strategic recommendations for optimizing content production, innovating dissemination approaches, and strengthening cost-benefit evaluation mechanisms. It concludes with an acknowledgment of research limitations and outlines future research directions, emphasizing longitudinal tracking and global comparative studies.