To comprehensively understand the nutritional value of postpartum parents of Alosa sapidissima, We investigated the basic nutritional compositions, amino acid and fatty acid by biochemical analysis methods. The experimental data were statistically compared with variance analysis. The data of amino acid and fatty acid compositions and contents in fodder were listed in Table 1. The results showed that the crude protein content was significantly lower in the female parent than in the male parent (P < 0.05, Table 2), while the crude fat content was significantly higher in the female parent than in the male parent (P < 0.05, Table 2). There was no significant difference in the contents of moisture and ash between the female and male (P > 0.05, Table 2). Eighteen kinds of amino acids were detected in postpartum parents, and the amino acid content was significantly lower in the female parent than in the male parent (P < 0.05, Table 3) except for glycine and cystine. The contents of total amino acids, essential amino acids, half-essential amino acids, non-essential amino acids and delicious amino acids were significantly lower in the female parent than in the male parent (P < 0.05, Table 3). Based on the amino acid scores, the first and second limited amino acids of female parent were valine and tryptohan, respectively, but the first and second limited amino acids of male parent were tryptohan and valine, respectively (Table 4). Based on the chemical scores, the first limited amino acid of postpartum parents was tryptophan, and the second limited amino acids were methionine and cystine (Table 4). The essential amino acid indexes (EAAI) were 81.60 and 82.64, respectively in female parent and male parent (Table 4), while Their F values were 2.20 and 2.23, respectively (Table 4). Eleven kinds of fatty acids were detected in postpartum parents. There were significant difference in the contents of C18:0, C20:0, C16:1 and C18:3n between the female and male (P < 0.05, Table 5). The average contents of docosahexenoic acid (DHA), eicosapentaenoic acid (EPA) and ω3 poly unsaturated fatty acids (∑PUFA) in female parent were much lower than in male parent. In conclusion, the nutritive value of muscle in postpartum parents of A. sapidissima was at a low level, the nutritional value of male parent muscle was better than that of female parent. The data are important for improving the feeding conditions and management of A. sapidissima parents and for their intensive culture.