The invention relates to a water-based two-component fluorosilicone acrylic anticorrosive paint. A film forming material component consists of 50-70 parts of water-based hydroxyl fluorosilicone acrylic resin, 20-40 parts of a pigment/filler, 1-10 parts of an auxiliary and 3-20 parts of de-ionized water, and a curing agent component comprises 5-10 parts of aqueous polyisocyanate and 1-5 parts of a thinner, wherein the weight ratio of the film forming material to the curing agent is 100: (5-15). The preparation method comprises the steps of dispersing and grinding the de-ionized water, the auxiliary and the pigment/filler, adding the water-based hydroxyl fluorosilicone acrylic resin, and uniformly stirring the prepared film forming material with the curing agent to obtain the paint. The anticorrosive paint has the advantages that a polysiloxane-polyurethane segmented copolymer is synthesized by taking the polysiloxane as a soft segment, thus enhancing water resistance, corrosion resistance and other performances; the shell raw material, which includes a fluorine-containing acrylic monomer, guarantees excellent ultraviolet and nuclear radiation resistance, flexibility, wear resistance and durability of coating. The paint is good in compatibility, self-dried at normal temperature, non-toxic and tasteless, low in volatile organic compound (VOC) and strong in coating adhesion, and can be widely applied to large steel structure, bridge, boat and other fields.