Similarities and differences in the climate and the crop climate between Missouri, America and Hebei province, China are analyzed and their agro-climatological analogous areas are thus located based on the calculationof the distance coefficients.Besides, the reliability of reflecting the simi-lar extent of climate and agroclimate by distance coefficients is examinedand described, thereby providing agroclimatological basis for introducingand taming fine crop varieties and exchanging agrotechniques betweenthe two regions.