Abstract: The coordinated promotion of the integrated development of new urbanization and rural revitalization is an urgent requirement for urban-rural relations in the new era. Taking all cities in Guangxi from 2013 to 2023 as the research objects, this paper constructs an evaluation index system for the development levels of new urbanization and rural revitalization, measures their development levels, and explores the spatial agglomeration change law of the coupling and coordination level between the two. The study finds that the comprehensive development levels of new urbanization and rural revitalization in all cities in Guangxi have been significantly improved, and the coupling and coordination level have continued to rise; however, the degree of spatial agglomeration is not high, and the radiation and driving effects are not prominent enough. Based on these findings, it is necessary to improve the development mechanism to promote the improvement of the coupling and coordination level between new urbanization and rural revitalization in Guangxi, and at the same time accelerate the construction of a spatial linkage pattern to achieve regional win-win results.