The present disclosure relates to oligopeptides applicable to a dental implant, which are selected from the group consisting of PEP7 (SEQ ID NO:1), PEP71 (SEQ ID NO:2), EP72 (SEQ ID NO:3), PEP73 (SEQ ID NO:4), PEP74 (SEQ ID NO:5), PEP75 (SEQ ID NO:6) and PEP76 (SEQ ID NO:7). The oligopeptides have very high reactivity for a BMP-specific receptor to increase osteoblastic differentiation and calcification, thereby showing improved osteointegration and osteogenesis.