Abstract:  Grounded in the context of China's "post-rural" transformation, this study employs Lefebvre's spatial production theory
and takes LIBRAIRIE AVANT-GARDE, a modern cultural space located in Beilong Village of Shaxi Ancient Town on the Tea-Horse
Ancient Road in western Yunnan, as its research object. From the perspective of the coordinated development of material civilization
and spiritual civilization, it explores the role of the reproduction of rural public cultural space in advancing common prosperity.
Through a triadic dialectical framework of spatial practice, spatial representation and representational space, it reveals that the
reproduction of rural public cultural spaces is not only a product of social change but also a creative practice of mass subjectivity. By
integrating tradition and modernity, this practice renews physical spaces while reconstructing rural cultural identity and activating
contemporary functional values. It enhances endogenous development momentum in rural areas and safeguards ethnic cultural roots,
offering theoretical insights and practical references for ethnic regions pursuing a Chinese modernization path that harmonizes material and spiritual progress.

Key words:  Chinese modernization, spatial production theory, rural public cultural space, common prosperity