To provide an anchor bolt having a simple structure locked or fixed on a basic body stably and used when it is necessary to lengthen a part protruding and extending from the basic body, an anchor device, and a wall body employing them.

This anchor bolt 1 has a head part 1a in contact with a surface mounting member 3, a rigid part 1b provided with a part fitted and locked in a basic body 5 and a part extending out of the basic body 5, and a plastic part 1c which is inflated in the basic body 5 and is fitted and locked in the basic body 5 by screwing an anchor screw 2 in. Since a tip part of the rigid part 1b is fitted and locked inside the basic body 5 and the rigid part 1b extends even to the outside of the basic body 5, the anchor bolt 1 is resistant against a force applied in the radial direction in the head part 1a thereof, and the anchor bolt 1 is not readily bent particularly in its intermediate part.