Abstract: Based on the case of high precision gravity measurement in the Yellow and Bohai Sea areas of Shandong Province, this paper systematically summarizes the high-precision seabed gravity measurement technology and methods. Taking major faults in land areas such as the Mouping-Jimo Fault, Taocun Fault, Haiyang Fault, and Wuning Fault as examples, using Euler deconvolution and potential field conversion data processing methods, the extension and distribution position of fault structures in the sea area was accurately located. The application demonstration of high precision seabed gravity measurement in detecting hidden faults has been formed. The results indicate that high precision seabed gravity measurement methods can effectively enhance the capabilities of shallow sea geophysical exploration technology, providing basic data for related fields such as marine basic geological research, mineral resource exploration, and major engineering construction.