Aiming at the power supply issue of the monitoring system for the floating mooring column of the single ship lock,a wireless power supply scheme for the floating mooring column of a large single-stage ship lock is proposed.We designed the circuit structure of the wireless power supply system and simulated the coupling mechanism to obtain the optimized design parameters of the main circuit.The device structure of the wireless power supply system's transmitter and receiver is designed,which can automatically align and follow up at a certain water level.The prototype of wireless power supply system is manufactured and installed for testing.The results show that when the transmitting and receiving ends are aligned,the wireless power supply system is activated for charging,achieving simultaneous lifting and charging.The receiving end of the wireless power supply system can effectively receive the transmitted electrical energy,convert it into energy flow,and transmit it to the monitoring system battery,achieving an energy transmission of 184.36 W with an efficiency of 67.3%.