Contemporary Chinese Minyao music, evolving from traditional folk forms, has increasingly integrated digital platforms as a primary mode of dissemination, reflecting a shift in both cultural consumption and commercial opportunities. This study quantifies the impact of platforms such as Douyin, Bilibili, WeChat, and NetEase Cloud Music on audience engagement, music discovery, and niche community formation, while highlighting the interplay between cultural preservation and platform-driven commercial dynamics. Using structured surveys targeting both consumers and producers of Minyao music, the analysis identifies platform-specific transmission patterns: short-video applications facilitate rapid viral exposure and audience reach, whereas music streaming services support sustained engagement, long-term user retention, and monetization avenues through subscription services, in-app purchases, and fan interactions. The findings underscore critical managerial implications for both platform operators and independent artists, including optimizing algorithmic visibility, developing content strategies aligned with platform mechanics, and leveraging audience analytics to enhance participation and loyalty. Furthermore, the study demonstrates how digital platforms mediate the balance between cultural authenticity and commercialization pressures, illustrating opportunities for innovative fusion of traditional musical elements with modern media practices. By bridging research in digital media management, user behaviour analysis, and contemporary Minyao music studies, this work offers empirical insights for refining platform strategy, designing engagement interventions, and supporting sustainable cultural dissemination. The results provide practical recommendations for artists navigating digital ecosystems and for platform managers aiming to enhance content visibility, audience growth, and revenue generation while preserving the cultural integrity of traditional music forms.