Disclose herein are an automated article singulator and a method thereof. The singulator according to one embodiment includes a measuring unit configured to measure positions and postures of articles being transferred, an arranging unit configured to receive randomly supplied articles, transfer the articles using a transfer apparatus, and change moving directions of the articles using a plurality of direction changing apparatuses, and a control unit configured to control the direction changing apparatuses one at a time or in groups to arrange flows of the articles according to information measured by the measuring unit.