“…Although the existing reviews are very valuable for relevant scholars to understand part of the research in this field, these documents mainly rely on qualitative methods to describe the contents and topics of a limited number of documents. As a research method in scientific metrology, information metrology and other fields, the scientific knowledge atlas can reveal the knowledge source, development law and research characteristics of specific research fields, and can be quantitatively analyzed in visual form, which is more intuitive and reliable (Afuye et al, 2022;Xue et al, 2021;Yuan & Sun, 2022a). Based on the scientific knowledge map tool software CiteSpace, we analyzed the research documents on spectral technology in the fruit field, to make an objective sorting and evaluation of the development of spectral research, and provided a reference for the dynamic and development trend of spectral research in the fruit field.…”