To provide an antireflection optical article having high antireflection performance and scuffing and wear resistances.

In the antireflection optical article obtained by stacking at least low refractive index films having a refractive index of ≤1.40 on a transparent substrate from the substrate side toward the air, the low refractive index layers comprise a mixture of a perfluoroalkyl acrylate or a perfluoroalkyl (meth)acrylate and a perfluoro-polyether.