Biodegradable macromolecule antifouling composition as well as preparation method and application thereof

The invention belongs to the technical field of marine antifouling coatings, and discloses a biodegradable macromolecule antifouling composition as well as a preparation method and application thereof. The biodegradable macromolecule antifouling composition is prepared from a cyclic ester monomer, a double-bond antifouling monomer, an initiator and an organic solvent. The biodegradable macromolecule antifouling composition disclosed by the invention is good in environmental friendliness, high in antifouling reagent load rate, good in controllable release property, good in solubility in an ordinary ship coating solvent, simple in synthesis process, relatively low in cost, applicable to industrial production, and good in application prospect in the field of preparation of marine antifouling coatings.