Abstract: In order to study the inheritance of protein and fat in F₂ generation of different soybean[Glycine max （Linn.） Merr.] parents, 13 crosses were made with high material Jidou 12 and high oil material Cangdou 6 as female parent, and the protein and fat contents of F₂ generation population were determined. The results showed that the grain protein content of F₂ population was highly correlated with that of the maternal parent, and the protein content of F₂ population was higher than that of the maternal parent, and the protein content of F₂ population was higher than that of the maternal parent. The protein content in the same population showed normal distribution. The fat content in F₂ population was highly correlated with the parents. The protein and fat content in F₂ population was negatively correlated（P<0.01）.

Key words: soybean[Glycine max （Linn.） Merr.], parent, protein, fat