We identified the Heat Shock Protein (HSP) 70 as a specific antigen of hepatocellular carcinoma. Furthermore, the phase I study of HSP70-mRNA introduced dendritic cells therapy showed the safety and efficacy. In this study, we tried to identify the HSP70 peptide sequence, which can induce the anti-tumor response, in order to the development of useful peptide vaccine therapy for cancer. Candidate HSP70 peptides predicted as multi-HLA binding potency were confirmed by ELISpot assay and ELISA for IFN-gamma production. The safty of the peptides were examined in rats and dogs. We started a clinical trial of first in Human HSP70 peptide immunetherapy for several cancers.