With the continuous development of China’s sustainable development, new energy has become the internal driving force for the transformation and upgrading of various industries and the creation of green economic benefits. It is widely used in industrial manufacturing, housing construction, transportation and other fields. The application of new energy in ships can not only reduce the pollution rate of ship transportation, but also promote the scientific development of ship design and manufacturing. The value of applying new energy in ships can be seen. This paper analyzes the application strategy of new energy in ships, in order to promote the shipbuilding industry to keep pace with the times.