Jiaozhou Bay, facing the Yellow Sea,is situated in south of the Shandong Peninsula.The research of polychaeta of this region was began 30 years ago. 132 spedies of polychaeta were already reported by various authors in the past. years.The precent paper reports 81 species of polychaeta (with asterisk) which have never been reported for this region, including 23 species recorded for the first time from China waters. Up to date, a total of 213 species was reported from the Jiaozhou Bay(see the list).