NOVELTY - Ship anti-fouling comprises e.g. pre-processing shot-blasting pipeline, removing the surface oil stain, water and impurity, coating surface to be sandblasted to Sa2.80 micron, using compressed air for removing residual grit and dust from coating surface, then using viscose cloth for wiping surfaces, removing the surface micro-dust, uniformly spraying primer, closing folding joint, overweld hole and water hole, using epoxy zinc rich paint with epoxy resin and polyurethane as two component paint base material, maintaining humidity, using anti-rusting aqueous agent, spraying for two times.    USE - The method is useful for ship anti-fouling (claimed).    ADVANTAGE - The method is short. The paint does not cause any toxic affect in marine environment, is pure and natural, has good adhesive force, has corrosion resistance and dirt resistant properties, is not easy to volatilize, avoid rust formation, and has excellent antifouling function.    DETAILED DESCRIPTION - Ship anti-fouling comprises (i) steel plate surface pre-processing: pre-processing shot-blasting pipeline, removing the surface oil stain, water and impurity, (ii) substrate sanding processing: taking substrate sanding reach Sa2.5 standard, using air pressure of 0.5-0.6 MPa, steel pill diameter of 1.2-1.5 mm, steel pill hardness is HV 400-500, diameter nozzel is 4-6 mm, (iii) welding structural defects repairing in sand blasting: coating surface to be sandblasted to Sa2.80 micron, the abrasive material is steel sand, copper ore, maximum potential value of salinity is 240 mu s/cm, surface dust particle size is 3,4, 5 dust distribution amount, when spraying, spray gun and surface to be coated is maintained vertical, where the distance is 200-280 mm, (iv) primer coating: using compressed air for removing residual grit and dust from coating surface, then using viscose cloth for wiping surfaces, removing the surface micro-dust, uniformly spraying primer, avoiding spray leak, where the paint thickness is 15-20 mu m, total thickness is not less than 30 mu m, (v) reinforcing paint spraying: closing folding joint, overweld hole and water hole, applying reinforcing rib plate in 2-4 channel, where the zinc-rich epoxy paint is used as strengthening spray paint, using epoxy zinc rich paint with epoxy resin and polyurethane is used as two component paint base material, (vi) spraying finish paint: maintaining coating requirement relative humidity at 85%, steel plate surface temperature is higher than the dew point temperature of 3 degrees C, using anti-rusting aqueous agent, spraying for two times, after the paint is completely dry, sanding with sandpaper, grinding, then using degreasing agent to wipe all surface, finally using adhesive cloth, removing micro-floating dust, and (vii) subsequent maintenance: if the film thickness not reach specified requirement or raw coating is being damaged, then repairing coating, when repairing coating, using various paint, number of layers, where the film thickness of each layer should be consistent with the surrounding coating, and coating in turn. An INDEPENDENT CLAIM is also included for marine antifouling paint, comprising 30-45 pts. wt. fluorinated acrylic ester, 20-35 pts. wt. silicon rubber, 2-10 pts. wt. biological agent, 15-25 pts. wt. polyethylene powder, 0.5-1 pts. wt. organic bentonite, 0.5-1 pts. wt. polyethylene wax and 2-7 pts. wt. propylene glycol.