The invention discloses a method for realizing two-dimensional cold atom surface optic lattices by a circular aperture array and relates to the field of neutral cold atom laser imprison and cold atom optic lattices. The method is implemented by a laser source system, a focusing lens, a beam expanding lens, a sub-wavelength circular aperture array, two-dimensional cold atom surface optic lattices, magneto-optical trap atom optic viscose, an atom detector, a laser, a wave chopper, another focusing lens, an optical fiber and a computer system on the basis of near-field optic diffraction of the sub-wavelength circular aperture array. Laser light irradiates on the horizontally arranged sub-wavelength circular aperture and diffracts through the same, local reinforcing near optical fields distributed periodically are generated, and neutral cold atoms loaded can be effectively imprisoned, and two-dimensional cold atom surface optic lattices are realized. The method for realizing two-dimensional cold atom surface optic lattices can realize surface optic lattices of neutral cold atoms of different types, lattice constant is adjustable, principle is simple, operation is convenient, and application range is wide.