An anti-cancer bioactive peptide having an amino acid sequence as shown in SEQ ID NO.1, or a functional analogue thereof prepared by substitution, insertion, or deletion of one or more amino acids of SEQ ID NO. 1, or a peptide having 90% homology in amino acid sequence with that of SEQ ID NO. 1. The anti-cancer bioactive peptide of the invention can selectively kill cancer cells and exhibit low cytotoxicity against normal cells.