Phosphine plays an important role in chemistry, materials science, physics, agriculture and other fields, and is widely used in semiconductor, plastic industry and storage fumigation. In order to systematically sort out the research hotspots of phosphine and deeply understand the research trends in the field of agriculture, this paper has utilized the Web of Science Core Collection database and employed CiteSpace for bibliometric analysis from dimensions such as annual publication output, keywords, authors, and institutions. The results showed that the publication output on phosphine research generally exhibited an upward trend, with research mainly concentrated in fields like chemistry and materials science. In the agricultural field, the United States, Australia, China, Greece, and Brazil occupy leading positions. In addition, attention should be focused on ' Journal of Stored Products Research ', ' Journal of Economic Entomology ' and ' Pest Management Science ' to keep up with the latest research trends in this field. In terms of research hotspots, current efforts are primarily centered on optimizing phosphine fumigation methods and investigating mechanisms of phosphine resistance. The application of RNAi technology in phosphine research may become one of the frontier hotspots in the future. This bibliometric study has emphasized elucidating the research dynamics of phosphine in the agricultural field, providing a systematic analysis of current research that can be utilized by industry professionals and researchers interested in this domain.