Abstract: The multi-amino acid from acid hydrolysate Silkworm chrysails protein was produced by electrodialysis and electrolysis. The results as following: the rate of multi-amino acid extraction was 67.9%, the content of seventeen kinds of multi- amino acid in the products was 82.04%, the rate of ash was 2.4%, and seven kinds of ash elements were determined, and that of K, Fe, Cu and Zn were higher than the others.

Key words: silkworm chrysails protein, electrodialysis and electrolysis, multi-amino acid