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Cross-regional locality research reflects the influences of natural environment and the human activities due to the abundant land types and the multiple landscape combinations in related regions.The Chinese farming-pastoral ecotone is a typical large-scale region but few studies were conducted.This research contributed to the understanding of cross-regional locality of the Chinese farming-pastoral ecotone from different scales,including national,sectional,and provincial administrative units by utilizing geotagged photos (GTPs) obtained from the Panoramio website.The major results were as follows:(1) the locality elements of the Chinese farming-pastoral ecotone included 52 free nodes classified into 8 types of scene attributes;(2) there were huge differences between locality elements of different regions,and there was a negative correlation between the similarity degree of elements of different provinces and their spatial distances;(3) the Chinese farming-pastoral ecotone could be divided into the north,central and south sections,whose localities had differences in element constitution,association structure and the strength of elements,system stability and the anti-interference capability;and (4) the evolution of the localities of the north and central sections was mainly influenced by human activities,while the locality of south section retained more natural features.On a theoretical level,this research aimed to establish the research methodology of locality from the perspective of open data on the web with strong operability and replicability.On a practical level,this research could enrich the structuring recognition of the locality of the Chinese farming-pastoral ecotone and the comprehension of its dynamic mechanism.The results provide a reference for locality differentiation protection and the development of a cross-regional scale.