The present invention provides an antifouling paint composition, by which a paint film can be formed using a small amount of an organic solvent, in which the strength and the self-abradability can be maintained for a long period, and by which a paint film having an excellent antifouling property can be formed. The antifouling paint composition according to the present invention contains an acrylic polymer (P), a radical polymerizable monomer (M) and an organic peroxide (O), wherein at least one of the acrylic polymer (P) and the radical polymerizable monomer (M) has a bivalent metal ester structure.
