[Objective] The interaction mechanism between intensive land use and new-type urbanization was determined in order to provide a reference for regional high quality development. [Methods] We qualitatively analyzed the interaction mechanism between the “resource-asset-capital” attribute of intensive land use and the “scale-agglomeration-dividend-wealth” effect of new-type urbanization, and set up an evaluation index system. We used survey data from 14 cities in Guangxi Zhuang Autonomous Region from 2003 to 2020 to quantitatively evaluate the development status of two cities by using an entropy method, a coupling coordination model, and a fuzzy comprehensive evaluation method. The panel vector autoregressive (PVAR) model was used to empirically analyze the interaction between the two cities as well. [Results] ① Intensive land use in Guangxi was dominated by resource (0.388) and asset (0.541) intensiveness, and the average composite index increased from 0.104 to 0.318. New-type urbanization was dominated by the scale effect (0.470) and the dividend effect (0.306). The average composite index increased from 0.184 to 0.425. ② The coupling coordination degree between intensive land use and new-type urbanization increased from 0.367 to 0.600, and the coupling coordination state showed a good evolution trend of “mild imbalance-near imbalance-low coupling coordination-major coupling coordination”. However, the development of each municipal unit was quite different. ③ According to the PVAR model results, there was a significant interaction between new-type urbanization and intensive land use. However, the influence of intensive land use level on new-type urbanization level was greater (47.11%) than that of new-type urbanization level on intensive land use level (35.05%). [Conclusion] Compared with new-type urbanization, the “resource-asset-capital” attribute of intensive land use belonged to the category of productivity. Compared with intensive land use, the “scale-agglomeration-dividend-wealth” effect of new-type urbanization belonged to the category of production relationship. There was an unequal interaction relationship between new-type urbanization and intensive land use.