Ship dual-fuel power supply system and supply method

The invention relates to the technical field of ship power systems, and discloses a ship dual-fuel power supply system which comprises a dual-fuel power system control end connected with a dual-fuel storage and supply end through an electric signal. The dual-fuel power system control end is connected with a dual-fuel storage and supply monitoring end through a data signal, and the dual-fuel power system control end is connected with the dual-fuel storage and supply monitoring end through the data signal. The invention provides two sets of ship dual-fuel power supply systems for providing power by mixing methanol and diesel oil or by mixing LNG (Liquefied Natural Gas) and diesel oil, so that the situation that the power supply effect is reduced and the power supply is unstable due to single LNG and methanol is conveniently avoided, the low-carbon and environment-friendly effects are effectively improved by improving the dual-fuel power supply, and the energy consumption is reduced. And the transportation cost