A photocurable coating composition, comprising 100 parts by mass of a vinyl monomer and not less than 0.1 parts by mass and not more than 50 parts by mass of a minute polymer particle; wherein - the volume average particle diameter of the minute polymer particle is not less than 0.05 μm and not more than 1 μm; - the vinyl monomer contains one or more monomers selected from the group consisting of a (meth)acrylic acid ester monomer, hydroxyethyl (meth)acrylate and a urethane-modified (meth)acrylate as a main component; - the (meth)acrylic acid ester monomer is synthesized from an alcohol having not less than 3 carbon atoms and (meth)acrylic acid; - 100 parts by mass of the vinyl monomer consists of not less than 1 parts by mass and not more than 100 parts by mass of the urethane-modified (meth)acrylate, and not less than 0 parts by mass and not more than 99 parts by mass of a vinyl monomer other than the urethane-modified (meth)acrylate; - the minute polymer particle is a core/shell graft copolymer having at least two layers of a rubber core layer present inside and a shell layer present outermost; and - the elastic core layer consists of a rubber polymer having a glass-transition temperature of less than 0°C; - the shell layer consists of a copolymer of 100% by mass of monomers for forming the shell layer; and - the monomers for forming the shell layer consists of -- not less than 2% by mass and not more than 90% by mass of one or more monomers (BS-1) selected from the group of consisting of an alkoxyalkyl (meth)acrylate, a hydroxyalkyl (meth)acrylate and glycidyl (meth)acrylate, -- not less than 2% by mass and not more than 98% by mass of one or more monomers (BS-2) selected from the group of consisting of an alkyl (meth)acylate, styrene, α-methylstyrene and (meth)acrylonitrile, -- not less than 0% by mass and not more than 10% by mass of a multifunctional vinyl monomer (BS-3), and -- not less than 0% by mass and not more than 10% by mass of other vinyl monomer (BS-4) copolymerizable with the said monomers; wherein the minute polymer particle is primarily dispersed in the vinyl monomer; and the volume average particle diameter is measured using a particle size analyzer by dynamic light scattering. - the volume average particle diameter of the minute polymer particle is not less than 0.05 μm and not more than 1 μm; - the vinyl monomer contains one or more monomers selected from the group consisting of a (meth)acrylic acid ester monomer, hydroxyethyl (meth)acrylate and a urethane-modified (meth)acrylate as a main component; - the (meth)acrylic acid ester monomer is synthesized from an alcohol having not less than 3 carbon atoms and (meth)acrylic acid; - 100 parts by mass of the vinyl monomer consists of not less than 1 parts by mass and not more than 100 parts by mass of the urethane-modified (meth)acrylate, and not less than 0 parts by mass and not more than 99 parts by mass of a vinyl monomer other than the urethane-modified (meth)acrylate; - the minute polymer particle is a core/shell graft copolymer having at least two layers of a rubber core layer present inside and a shell layer present outermost; and - the elastic core layer consists of a rubber polymer having a glass-transition temperature of less than 0°C; - the shell layer consists of a copolymer of 100% by mass of monomers for forming the shell layer; and - the monomers for forming the shell layer consists of -- not less than 2% by mass and not more than 90% by mass of one or more monomers (BS-1) selected from the group of consisting of an alkoxyalkyl (meth)acrylate, a hydroxyalkyl (meth)acrylate and glycidyl (meth)acrylate, -- not less than 2% by mass and not more than 98% by mass of one or more monomers (BS-2) selected from the group of consisting of an alkyl (meth)acylate, styrene, α-methylstyrene and (meth)acrylonitrile, -- not less than 0% by mass and not more than 10% by mass of a multifunctional vinyl monomer (BS-3), and -- not less than 0% by mass and not more than 10% by mass of other vinyl monomer (BS-4) copolymerizable with the said monomers; wherein the minute polymer particle is primarily dispersed in the vinyl monomer; and the volume average particle diameter is measured using a particle size analyzer by dynamic light scattering. -- not less than 2% by mass and not more than 90% by mass of one or more monomers (BS-1) selected from the group of consisting of an alkoxyalkyl (meth)acrylate, a hydroxyalkyl (meth)acrylate and glycidyl (meth)acrylate, -- not less than 2% by mass and not more than 98% by mass of one or more monomers (BS-2) selected from the group of consisting of an alkyl (meth)acylate, styrene, α-methylstyrene and (meth)acrylonitrile, -- not less than 0% by mass and not more than 10% by mass of a multifunctional vinyl monomer (BS-3), and -- not less than 0% by mass and not more than 10% by mass of other vinyl monomer (BS-4) copolymerizable with the said monomers;