The invention discloses a manufacturing device used after the failure of an eccentric shaft sleeve of a rolling mill. The manufacturing device used after the failure of the eccentric shaft sleeve of the rolling mill comprises an elastic clamping sleeve, a fixed sleeve body, an outer conical surface, an inner conical surface, a fixed seat, an inner cavity, an upper guide column, an upper guide hole, an adjustment clamping device, an upper stud, an upper locking nut, an upper thread hole, an upper locking screw and a clamping surface. The manufacturing device used after the failure of the eccentric shaft sleeve of the rolling mill is reasonable and simple in structure, low in production cost, and convenient to install, and the movement amount of the fixed sleeve body is measured through a dial gauge, that is, the eccentric distance of the inner hole of the elastic clamping sleeve is accurately adjusted, so that the machining accuracy is increased; and an upper locking screw and a lockingscrew are locked, then an upper connection block and a lower connection block drive a connection plate to move to the left, and due to the left movement of the connection plate, the elastic clampingsleeve is driven to move to the left through a T-shaped block to completely clamp the eccentric shaft sleeve, so that the reliability and stability during machining are improved.