Cultural-technology integrated new business forms have become a core vehicle for implementing China’s National Cultural Digitalization Strategy, yet their rapid expansion is exerting systemic pressure on existing governance arrangements. Starting from the structural tension between technological evolution and institutional change, this paper develops an analytical framework of “core contradiction-triple mechanisms-four-dimensional coordination” to explain, in a systematic manner, how governance dilemmas emerge and how they can be addressed. The study shows that techno-institutional asynchrony constitutes the deep-seated cause of governance difficulties. This core contradiction manifests along three dimensions—organizational, technological, and spatial—resulting respectively in fragmented governance authority and accountability, the expansion of algorithmic power, and the monopolization of international rule-making. To overcome these challenges, the paper proposes a four-dimensional coordinated governance framework encompassing technology governance, multi-actor coordination, institutional adaptation, and global engagement, and further articulates practical pathways across four dimensions: actors, instruments, processes, and space. The findings offer policy-relevant insights for strengthening the implementation system of the National Cultural Digitalization Strategy and improving governance policies for emerging cultural-technology integrated business forms.