The invention provides a large-area near field light two-dimensional array firmly immobilized on a substrate, and an inexpensive method for producing the array. The object is attained by using a near field light two-dimensional array 50 that comprises an electroconductive member 6, an immobilizing layer 2 formed on one surface of the electroconductive member 6 and a plurality of light-scattering particles 4 arranged on one surface 2a of the immobilizing layer 2, and enables in-plane light emission through the near field light from the light-scattering particles 4, in which the light-scattering particles 4 have a particle size of from 1 to 100 nm or less, the light-scattering particles 4 are arrayed in a lattice arrangement and spaced equally from each other, the distance between the adjacent light-scattering particles 4 is not larger than the particle size, and the localized surface plasmon of the light-scattering particles 4 can resonate with external light.
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