When ships pass through the ship lock,there may be damage to the ship lock facilities such as mooring columns and miter gates due to behaviors such as overspeed and line crossing,as well as adverse effects such as obstruction by hydraulic structures and unstable vessel traffic services(VTS) signals in the ship lock chamber.The safety supervision in the ship lock chamber mainly relies on manual work,and there are certain deficiencies in the intelligence,timeliness,and accuracy of ship safety supervision,which increase the safety risks of ships in the ship lock chamber.We aim to solve the above problems by studying the monitoring of the passing ship overspeed and line crossing on the basis of ship recognition models and radar speed measurement principles.Through theoretical derivation,we propose a layout plan and calculation approach for ship overspeed and line crossing monitoring devices,and put forward an intelligent monitoring design for overspeed and line crossing in ship lock chambers,which has been successfully applied in the Gezhouba ship lock.The results indicate that intelligent monitoring can effectively monitor potential risks such as overspeed and line crossing of the passing ships,with a warning accuracy rate of over 99.5%,effectively reducing ship lock safety risks.