In order to explore the hotspots and development trends of domestic soil acidification research in recent years, the statistics and mapping of domestic soil acidification research literatures, including institutions, keywords, literature citations and other information charts were made, and the development trend of soil acidification research, high-yield institutions, high-frequency keywords and other information were explored based on the CNKI database by using the statistical analysis, clustering and CiteSpace information visualization software and bibliometric method. The results indicated that the theme of soil acidification research in China had gradually shifted from forest soil to farmland soil. Acid deposition and soil chemistry had been the focus of attention in soil acidification research. Research institutions were mainly concentrated in universities and research institutes. At the same time, high-frequency keywords showed that domestic soil acidification research mainly focused on acid deposition, fertilization management, soil structure, crop growth, acidification causes and improvement, continuous cropping obstacles and soil pollution. This study can not only help to fully understand the status and progress of domestic soil acidification research, but also provide an important reference for the research and application of farmland soil acidification improvement.