The present invention relates to a method for preparing an atomic dispersion catalyst, an oxygen reduction reaction catalyst including an atomic dispersion catalyst and an atomic dispersion catalyst prepared thereby, and a method for preparing an atomic dispersion catalyst according to an embodiment of the present invention includes carbon Forming an ionic liquid coating layer on the support; Synthesizing a metal precursor on the ionic liquid coating layer; Forming a protective coating layer on the ionic liquid coating layer; And heat-treating the carbon support on which the protective coating layer is formed.
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