Saline land is widely distributed and large in the world. It has low fertility and is difficult to utilize, which restricts the economic development of many regions in the world, including China. This paper quantitatively summarizes the hotspots and potential trends of saline-alkaline land research and proposes shortcomings to provide reference for future saline-alkaline land improvement. This paper conducted a bibliometric review of the WoS core collection database using CiteSpace software, and the results show that there is an upward trend in research on improving saline-alkaline land. China is a major contributor to this research field, and the journal PLANT SOIL has many articles with high centrality and high impact factor. Saline and alkaline land improvements mainly focus on the direction of bio-improvement, which is low-cost, has little impact on the environment, and is suitable for largescale popularization. The application of desulfurization gypsum and biochar to improve soil is also a hot research topic at this stage, and the heat of biochar improvement of saline-alkaline land may continue. The management of saline-alkali land presents challenges, including high costs, transient improvement effects, environmental pollution, and issues related to regional adaptability. Future research should prioritize interdisciplinary studies, sustainable and environmentally friendly improvement methods, investigations into regional adaptability, and long-term monitoring.