Abstract: According to 2012 Gansu Development Statistical Yearbook, the author separately used the gray correlation analysis and the clustering analysis method made an analysis on the Gansu Province 14 locally prefectures agricultural economic level of development, and briefly evaluated the each city position in Gansu agricultural economy, in order to provide a reference to regional agricultural economy and promote the agricultural economy in Gansu Province a sustained and stable development. The results showed that: agricultural economy was still the backbone of the national economy in Gansu Province, because of different natural and economic factors, the county agricultural economy as a whole feature showed that ‘west to east, from north to south’ in Gansu Province. Hexi area was excellent of all areas (class 1 area), central and eastern Gansu Region at a medium level (class 2 district), the southern mountainous at poor level (class 3 area). It was combining grey relational analysis with cluster analysis combination that people could provide a scientific evaluation of the agricultural economy and an objective theoretical calculation method.