The large cutter suction dredger has a strong capability of dredging and transporting, and can excavate the hard-ground deep water channel, the process of which has become increasingly mature, such as the cutter suction dredger’s direct barging technology and stern-blowing barging technology. However, the anchoring of cutter suction dredger in the hard-ground deepwater channel becomes the key factors of barging technology. The cutter suction dredger method is to take the stern’s steel pile as the axis, and excavate through sliding transversely the anchor’s pull yaw, and it is also known as the fan-shaped transverse dredging method (including the steel pile trolley). Taking the anchoring technology of the cutter suction dredger for the hard-ground deepwater channel as the study case, this paper summarizes the optimization of the anchoring technology to serve as reference for similar constructions.