Abstract: In order to study foxtail millet color traits inheritance and accelerate the breeding process, farmhouse varieties Jinxiangyu Xiaobaimi which millet color is white and Chigu series varieties which millet color is yellow as parents, hot water emasculation method was used to be orthogonal cross and reciprocal crosses. According to the millet color isolated law of Fl populations and F2 populations,genetic analysis was made. The results showed that in Fl populations, orthogonal and reciprocal millet colors were all buff; millet colour yellow ： buff ：white was about 1：2：1;it was not accord with Mendelian inheritance. So Jinxiangyu Xiaobaimi white gene was semi-dominant.