Abstract: The digital platform based on internet technology has promoted the level of multi-agent participation in public service. Using the theory of control rights， this paper takes the public digital culture service of “Culture With You” in Jiaxing city as a case study， and puts forward the collaborative governance mechanism of sharing control between the government and the public， and explains its mechanism and effect from three dimensions of collaboration platform， control sharing and service provision. The research finds that the network collaboration platform promotes the joint presence of the government， the public and service providers， and provides technical support for the sharing of control rights. The government shares the control rights of target setting right， inspection acceptance right and incentive distribution right with the public， and improves the precision management level of public cultural service. With the formation of the window of political opportunity， the innovation of Internet governance tools and the development of civil society， the degree of control sharing shows a dynamic upward trend， and the distribution of power tends to be balanced.

Key words: collaborative governance, collaboration platform, control rights, public digital culture services