Abstract: Objective To analyze the relevant literature on aflatoxin in domestic grain published in China Knowledge Network（CNKI） in recent years,to show the research hotspots and frontiers in this field,and provide directions for future research. Methods Retrieve literature related to aflatoxin in grains collected in the CNKI database over the past 30 years,and use CiteSpace software for visualization analysis of publication volume,authors,institutions,keyword co-occurrence,clustering,and highlighting. Results A total of 318 articles were included,and the overall publication volume showed an upward trend,reaching its peak in 2019. The author with the highest publication volume was Songxue Wang. The authors and institutions involved in the research collaborated closely,forming a core group of authors in the field of research on aflatoxin in grains,and most of the research institutions were universities and research institutes. Eleven keywords were identified,including fungal toxins,grains,cereals,detection methods,and prevention. The detection methods were diverse,with chromatography and enzyme-linked immunosorbent assay being the main methods. The harm of aflatoxin mainly affected the liver. The main clustering included 11 keywords such as fungal toxins and grains,and the main emerging words included aflatoxin,food safety,food,toxins,and 25 others. Conclusion The field of research on aflatoxin in grains in China is currently in the development stage,and aflatoxin is a research hotspot. It threatens food security and is polluted severely and widely. The future detection methods for aflatoxins need to be improved to be fast,simple,and low-cost. The key to reducing pollution and loss is to implement full chain control strategy,which is of great significance for safeguarding national food security and people's health.

Key words: Aflatoxins, Grain, Detection method, Food safety, Visual analysis