Abstract: In order to fully understand the research hotspots and research frontiers of dissolved organic matter（DOM）, DOM literatures in Web of Science and CNKI database were taken as research object, CiteSpace was used to visually analyze the annual publication numbers, research disciplines, published authors, published institutions, published countries, keyword co-occurrence, keyword emergence, co-cited literature, authors and journals. The results showed that,（1）the publication numbers in Web of Science database and CNKI database were generally increasing. The research disciplines were distributed in the fields of environmental science, engineering and environment, and environmental science and resource utilization, agricultural basic science, respectively.（2）The authors with the highest publication number in Web of Science database and CNKI database are Dittmar Thorsten and Xue Shuang respectively. China and the United States had far more publication numbers than other countries, with France, Germany and the United States ranking the top three in terms of influence.（3）Using parallel factor analysis and fluorescence spectroscopy to study humic acid, dissolved organic carbon/nitrogen and DOM derived from marine bacteria were a research hotspot of foreign literatures. Three-dimensional fluorescence spectrum analysis, photodegradation and adsorption behavior of DOM in the Three Gorges Reservoir and Taihu Lake Basin were the research hotspots of Chinese literatures.（4）The analysis of DOM molecular composition, DOM-mediated reactive oxygen species, and bacterial/microbial community responses to DOM by two-dimensional correlation spectroscopy and FT-ICR-MS were the research frontiers of foreign literatures. The three-dimensional fluorescence analysis of DOM from biochar/excess sludge and the formation of DOM by anaerobic fermentation were the research frontiers of Chinese literatures.（5）Environmental Science ＆ Technology, “Stedmon C A” were the first highly cited journals and authors, respectively.