A corner module apparatus for a vehicle, comprising: a driving unit configured to provide drive power to a wheel; a braking unit configured to interfere with rotation of the wheel and to generate braking power; a suspension unit connected to the driving unit and configured to absorb shock transferred from a road surface; and a steering unit connected to the suspension unit and configured to adjust a steering angle of the wheel, wherein the steering unit comprises: a first steering main body fixed to a frame module; a second steering main body supported on the first steering main body in a manner that is rotatable on a steering axis, and connected to the suspension unit; and a steering driving unit installed on the first steering main body and configured to rotate the second steering main body relatively to the first steering main body, and characterized in that. the steering driving unit comprises: a steering actuator coupled to the first steering main body and configured to generate rotatory power; and a drive power transfer module configured to rotate the second steering main body in conjunction with the rotatory power generated from the steering actuator. a driving unit configured to provide drive power to a wheel; a braking unit configured to interfere with rotation of the wheel and to generate braking power; a suspension unit connected to the driving unit and configured to absorb shock transferred from a road surface; and a steering unit connected to the suspension unit and configured to adjust a steering angle of the wheel, wherein the steering unit comprises: a first steering main body fixed to a frame module; a second steering main body supported on the first steering main body in a manner that is rotatable on a steering axis, and connected to the suspension unit; and a steering driving unit installed on the first steering main body and configured to rotate the second steering main body relatively to the first steering main body, and characterized in that. the steering driving unit comprises: a steering actuator coupled to the first steering main body and configured to generate rotatory power; and a drive power transfer module configured to rotate the second steering main body in conjunction with the rotatory power generated from the steering actuator. a first steering main body fixed to a frame module; a second steering main body supported on the first steering main body in a manner that is rotatable on a steering axis, and connected to the suspension unit; and a steering driving unit installed on the first steering main body and configured to rotate the second steering main body relatively to the first steering main body, and characterized in that. the steering driving unit comprises: a steering actuator coupled to the first steering main body and configured to generate rotatory power; and a drive power transfer module configured to rotate the second steering main body in conjunction with the rotatory power generated from the steering actuator. a steering actuator coupled to the first steering main body and configured to generate rotatory power; and a drive power transfer module configured to rotate the second steering main body in conjunction with the rotatory power generated from the steering actuator.