Abstract:Taking Chinese dialects as an example, this paper studies the internal mechanism of the influence of cultural segmentation on regional economic growth from the perspective of factor mismatch, and then empirically studies the influence of cultural segmentation on regional economic growth by using the revised global night satellite lighting data and the dialect diversity index of each region.It is found that the cultural segmentation represented by Chinese dialects significantly inhibits the regional economic growth, which is mainly reflected in the central and western regions.The cultural segmentation hinders the optimal allocation of labor and capital, and then has a negative impact on regional economic growth.The conclusion of this paper is helpful to further clarify the relationship between cultural factors and economic growth, and also provides useful enlightenment for exploring the dynamic mechanism of promoting China’s economic growth from the perspective of informal system.