The present invention provides an electric independent steering apparatus comprising: a first knuckle having one end coupled to the lower end of a strut part, and including an upper support part extending and protruding outwardly from the one end and a lower support part extending and protruding from the other end so as to face the upper support part; a second knuckle which is rotatably disposed on the lower support part inside the first knuckle, has a motor installed therein, and has a driving wheel coupled to the outside thereof; and a harmonic gear which is disposed so as to be rotatable from the upper support part and relatively rotates from the first knuckle together with the second knuckle.