Abstract: 3D seismic exploration over water has always been a difficult point in seismic exploration. Although predecessors have done a lot of relevant researches, the methods and means adopted are also different due to the different topography and landforms and seismic geological conditions in different research areas. In this paper, we take the successful experience of the waterborne 3D seismic exploration project of Xin'an Coal Mine as an example, analyzes and summarizes the research and application of some new methods and technologies in the field data acquisition of this project, hoping to provide valuable reference for other similar waterborne 3D seismic exploration projects.