Abstract: Against the backdrop of public libraries transitioning from project-based exploration to systematic management of cultural and creative product development, how to balance public welfare attributes with market benefits and build a sustainable development system has become a key industry issue. Using literature analysis and case study methods, this research takes the practice of the Shanghai Library as an example and proposes a tiered development system centered on the “core visual narrative”, comprising four tiers: public welfare tier, mass consumption tier, experience value-added tier, and cultural premium tier. Drawing on the balanced scorecard theory, the study synthesizes feedback from three dimensions: public welfare synergy, market responsiveness, and narrative effectiveness, to guide optimization in topic selection, design, pricing, distribution channels, and subsequent expansion. The study argues that cultural and creative product development in public libraries should not simply replicate commercial cultural-creative models; instead, they should be grounded in the unique characteristics of library collections and public cultural responsibilities, and establish a coherent operational framework that integrates resource transformation, tiered development, and feedback-driven adjustments. This research provides an analytical framework and case reference for the systematic development of cultural and creative products in public libraries.