Abstract: The Second International Symposium on Marine Engineering Geology(ISMEG 2019)was successfully held from 18 to 20 October 2019 in Dalian, China. It is a global academic symposium on marine engineering geology sponsored by IAEG's Commission for Marine Engineering Geology(C34) and hosted by the State Key Laboratory of Coastal and Offshore Engineering(Dalian University of Technology) under the framework of International Association for Engineering Geology and the Environment(IAEG). The theme of the symposium was the exploration of marine resources and marine engineering geology. The symposium had a total of 10 plenary reports, 21 keynote reports and 71 academic reports focused on seven special topics. They include engineering properties of marine soils, marine geological hazards and preventions, in-situ exploration, monitoring and physical modelling, hydrodynamics and environmental interaction, exploration of gas hydrate, offshore foundations and flow-structure-seabed interaction. As a platform of communication, sharing, cooperation and innovation for marine engineering geological researchers at home and abroad, the International Symposium on Marine Engineering Geology has been successfully held twice in China. The two symposiums affirmed the rapid development of marine engineering geological research in China, and moreover, put forward higher requirements for the high-level achievements and achievements transformation of marine engineering geological research in China.