GuangZhou Marine Geological Survey (GMGS), under the China Geology Survey, is a multi-discipline and multi-functional marine geological investigation organization. It mainly carries out the basic, strategic and public marine geological investigation in China.

　　GMGS owns three geophysical investigation vessels one drilling vessel and two fuel ships which are equipped with the advanced instruments such as DGPS, 2D/3D seismic recording system, subbottom profiling system, gravitometer, magnetic gradiometer, depth-sounder, multi-frequency probing system, side-scan sonar system, CTD instrument, sea bottom camera sediment corers, multi-beam system and so on. GMGS can conduct the sea floor topography, geomorphology and hydrocarbon resource investigation and marine geological engineering in deep sea and shallow water with these vessels and instruments.