The utility model discloses a naval vessel aft anchor fixing device. It includes the bower anchor chain, the aft anchor of connection on the bower anchor chain, can send control command's windlass master control device and be used for supporting the cable holder of bower anchor chain the bower anchor chain, the only chain ware of installing on the bower anchor chain has between cable holder and the windlass master control device, anchor sprocket installation is on a left side that lies in the naval vessel stern, on the unable adjustment base of the right side, a left side, install a left side on the unable adjustment base of the right side respectively, the vice anchor chain in the right side and can control a left side respectively, the left side of the vice anchor chain in the right side, right side direct current motor, two rings of welding on the stock of aft anchor, a left side, the vice anchor chain in the right side can be connected with two rings respectively. After adopting foretell structure, its structural design is ingenious, has greatly lightened the atress of anchor chain, has lengthened anchor chain life, simultaneously, need not can realize the change of anchor chain the state of pulling in to shore under at the navigation in -process, and sparingly the hours underway has improved the navigation safety effectively, has strengthened the working efficiency.