To easily fix a rail to a rail fixing hole with bonding by a dog spike or a screw spike, and to hardly slip it out by vibration resulting from passing of a train, rain water or the like.

A fixing tool body 2 of an anchor 10 is formed into a prescribed length with a transverse cross section of dog leg shape, L shape, circular shape, V shape, line segment shape, curved face of U shape, or the like, and coming-off preventive wedge-like protruded pieces 3, 4 are projected to sideways of the fixing tool body 2, in both side parts of the fixing tool body 2. Locking pieces 5, 6 locked to a rail fixing hole 8 are arranged in the folding back manner in an upper end of the fixing tool body 2. In particular, protrusions 9 or notched pieces are projected with a fixed interval perpendicularly to a longitudinal direction of the fixing tool body 2, on a side face of the fixing tool body 2.