Ship path optimization method based on field theory

The invention discloses a ship path optimization method based on a field theory, and the method comprises the steps: S1, building a potential energy field model of a destination to a ship, calculating the potential energy difference between the destination and the ship according to the potential energy field model of the destination to the ship, and enabling the ship to arrive at the destination when the potential energy difference is zero; S2, establishing a model for judging whether the ship passes or not, calculating the water depth of the ship passing the water area according to the model for judging whether the ship passes or not, and judging the trafficability of the ship passing the water area; S3, establishing a static obstacle potential energy field model, calculating the sum of potential energy of any position point of a passing water area in the static environment according to the static obstacle potential energy field model, the path with the lowest potential energy calculated through the method h