Abstract: In order to deeply understand the research status and development trend of soil nitrogen mineralization, the CiteSpace information visualization analysis software was used to conduct a visual analysis on the basic knowledge framework, research hotspots and development trends, from 1804 documents in the field of soil nitrogen mineralization based on the web of science (WOS) database from 1990 to 2020. The results showed that the research on soil nitrogen mineralization is in a stage of continuous development showing a strong interdisciplinary trend in the fields of environmental science, ecology and agriculture. The important research topics in this field were the mechanisms and dynamics of soil nitrogen transformation. Recently, the research was mainly focused on the effects of different land use types or agricultural management measures on microbial characteristics, which in turn affecting the process of soil nitrogen transfer and transformation. The contribution from Chinese researches were increasing rapidly, but the impacts is still low in the international arena.