Ninty three bp endotoxin binding peptide gene was cloned with PCR from the amino terminal of human LBP cDNA, which was introduced into the expression plasmid Pinpoint Xa 3. After the constructs being transformed into E.coli DH5?, the postive recombinants were identified by restriction enzyme analysis and DNA sequencing. Induced by IPTG, the desired 16.5kD EBP fusion protein was expressed and confirmed with SDS PAGE and Western blotting. These results paved a reasonable way for the study of a new endotoxin binding peptide.