2-legged walking robot

Floor surface ground end of the leg links 2 when upright bipedal walking robot 1 to the shoulder joint height, mean value obtained by averaging the height from the floor of the work object group Havg and their value within the range set based on the standard deviation of σ (Havg + 1 / 2σ), specifically, determined so that a value within the range from 700mm to about 1000 mm. This makes it possible to optimally determined according to the installation height from the floor surface of the shoulder joint to the height of the work object group, thereby enabling to improve the efficiency of work in an existing work space.