Abstract: In order to study the appropriate selection of ecological conditions in Datong area of high yield of buckwheat varieties, with plot experiment,‘Black Feng 1’,‘six buckwheat No. 2’,‘3 Weining’,‘Hunan 3-1’, ‘West 9909’,‘six buckwheat No. 1’,‘Hunan 1-2’,‘Jin buckwheat No. 2’,‘Hunan 3-2’,‘black grain buckwheat’,‘white buckwheat’,‘black buckwheat’,‘buckwheat’,‘black green buckwheat’and‘e luo wu qi’ 15 buckwheat varieties of growth periods, agronomic traits and yield were analyzed in the Datong Area. The results showed that,‘buckwheat’,‘Jin buckwheat No. 2’and‘black buckwheat’, with the medium growth periods and relatively high yield, were suitable to plant widely in Datong Area.