The eccentric wheel apparatus includes a rotating frame, a wheel frame, and a circular adjustment member. Here, the inner portion of a cylindrical body is isolated by an isolation plate and an axial tube to which a driving shaft is fixed is eccentrically formed via the isolation place, in the rotating frame. Accordingly, the rotating frame and the wheel frame are combined with or released from each other. In the case that the rotating frame and the wheel frame are released from each other, the wheel frame can be freely eccentrically adjusted.