Abstract:Liugong Island Provincial Geopark is located in Weihai city of Shandong province. It has 25 geological relics in four categories, 6 types and 8 subtypes, including geological (body, layer) profiles, geological structures, geomorphic landscape and environmental and geological relic landscape. It is especially famous for eclogite, a typical rock of ultrahigh pressure metamorphic rocks. It is the largest, best preserved and most typical geological relic of eclogite found in Shandong and even in China so far. In this paper, geological significance of eclogites has been systematically reviewed based on previous research achievements.