Abstract: To monitor key information such as hammering energy, pile shaft stress, pile side resistance and pile tip resistance in real time during offshore pile driving, accurately evaluate pile shaft integrity and bearing capacity, reduce the risk of hammer rejection, and ensure the safe implementation of offshore jacket installation projects, in this research, dynamic monitoring technology for offshore pile driving was carried out. Taking a jacket installation project in Bohai Sea as an engineering case, this paper adopted the methods of pile-soil model construction and drivability analysis, combined with the principles of high-strain dynamic monitoring technology, and fully implemented the whole-process operation of dynamic monitoring for offshore pile driving. After completing on-site data collection, fitting analysis and result evaluation were conducted on the monitoring data. The research successfully realized real-time monitoring of key parameters in the pile driving process of the project, effectively evaluated pile shaft integrity and bearing capacity, and prevented the occurrence of hammer rejection, thus ensuring the smooth progress of the jacket installation project. The research shows that the principles of pile driving dynamic monitoring technology are applicable to the pile driving progress of offshore jacket installation, and its technical methods and implementation experience can provide important technical reference and practical basis for subsequent similar offshore pile driving projects.