Abstract: Abstract: In order to research the heritage laws of brix, crude protein and crude fiber of stalk in Sweet Sorghum, three reciprocal cross combinations were designed. The results showed that brix, crude protein and crude fiber didn’t have cytoplasmic effect. There were no obvious heterosis in their correlations, and there was significant positive correlation between F1 and their parents. The broad heritability of brix, crude protein and crude fiber was respectively 74.5%, 61.8% and 64.4%. The three characters were all revealed the feature of quantitative character.