To provide the smallest bipedal walking toy which is constituted in such a manner that the arm swinging motion of arm parts and the lateral motion of a head part can be interlocked, and bipedal walking having an actually attending feeling being close to an actual motion, the arm swinging motion of the arm parts and the lateral motion of the head part can be interlocked.

Regarding the arms 9 and 10/head interlock-driving module of this bipedal walking toy, especially, a mainspring unit is made a driving source, leg parts 3 and 4 are alternately carried forward through gear strings, and bipedal walking is performed. At the same time, the swinging motion of the arms and the lateral motion of the head are constituted in a manner to be interlockable, and the bipedal walking having the actually attending feeling being close to the actual motion, the arm swinging motion of the arms, and the lateral motion of the head are constituted in such a manner as to be interlockable. Also, for the arm-head interlock-driving module for the bipedal walking toy, interesting motions and applicable designs for a wide range of usages are made possible by an optional designing of the structures of a housing 8 or the head ll.