Control method of offshore generator set

The invention discloses a control method of an offshore generator set. The control method comprises the steps that the high-temperature water inlet temperature and the low-temperature water outlet temperature of a diesel engine, the low-temperature water inlet temperature of a generator and the low-temperature water outlet temperature of the generator are obtained; judging whether the high-temperature water inlet temperature of the diesel engine is greater than a preset maximum value or not; whether the low-temperature water outlet temperature is larger than a preset diesel engine temperature threshold value or not is judged; judging whether the low-temperature inlet water temperature of the generator is within a preset first temperature range or not; judging whether the low-temperature outlet water temperature of the generator is greater than a preset generator temperature threshold value or not; and checking the unit, the diesel engine, the generator and the cooling system according to the judgment result t