Due to the long-term use of the stud link anchor chain, the wear and tear is serious. When the anchor is thrown at the hard bottom and the anchor speed is too fast, the anchor will be broken and the anchor will be lost. The loss of the anchor can be prevented. Before the ship sails, the anchor shackle should be carefully checked. If it is loose, it should be disposed of in time. The stud link anchor chain shall be inspected and replaced on time according to the inspection requirements of the ship.