“In order to systematically understand the research trend of whole industry chain grain loss reduction at home and abroad, the bibliometric method and CiteSpace software were used to visually analyze the publication time distribution, research subjects, and research hotspots of 668 Chinese and English literature in the field of whole industry chain grain loss reduction research from 2015 to 2025 in the core collection databases of China National Knowledge Infrastructure and Web of Science. This revealed the evolution trend of hotspots in whole industry chain grain loss reduction, provided solutions to solve the problem of food loss and waste, and laid the foundation for the construction of the global food security system.”