Using eleven foxtail millet varieties in the middle-late mature group of the national regional test of Northeast China in 2012, the correlation between fourteen main agronomic characters and yield was analyzed by the grey relational analysis method. The results showed that the relational order was as follows: grain percentage ＞ grain weight per spike ＞ growth period ＞ spike weight ＞ stem-boring rate ＞ drought resistance ＞ sheath blight ＞ millet rust ＞ spike width ＞ spike length ＞1000-seed weight ＞ plant height ＞ millet blast ＞ lodging resistance. It revealed that grain percentage, grain weight per spike, growth stage and spike weight had more influence on the yield than the other nine agronomic characters.