Liquid circulation cooling system of offshore wind generating set and monitoring method of liquid circulation cooling system

The invention provides a liquid circulation cooling system of an offshore wind generating set and a monitoring method of the liquid circulation cooling system, and belongs to the field of wind power generation, the liquid circulation cooling system comprises a main cooling system for the offshore wind generating set, the main cooling system comprises a cooling pipe and a cooling main pump arranged on the cooling pipe, and cooling liquid is arranged in the cooling pipe; the system further comprises a controller, a wireless communicator, a power supply, an automatic liquid supplementing part and a leakage monitoring part. The wireless communicator is connected with the controller and is used for establishing communication with a remote user side; the controller is connected with the automatic liquid supplementing component and the leakage monitoring component; the power supply supplies power to the controller, the wireless communicator, the automatic liquid supplementing component and the leakage monitoring com