The paper examines the role of provincial museums in China as active cultural broadcasters through the lens of M. M. Bakhtin’s dialogue theory. The contemporary museum is analyzed not as a monological institution but as an open dialogical space, where the curator («author»), exhibits («text»), and visitor («reader») engage in equal interaction, generating new meanings. Using the Gansu Provincial Museum as a case study, the article demonstrates how international exhibition projects and creative industries based on cultural relics unlock the museum’s dialogical potential. These practices overcome temporal and geographic boundaries, transforming local heritage into a narrative accessible to a global audience. As custodians of local identity, provincial museums evolve into polyphonic interaction, fostering dialogue between tradition and modernity, China and other countries, promoting mutual understanding at the frontiers of other cultures.