To provide a structure of connecting a neck part to a head part of a doll, for extremely facilitating attaching and detaching operations.

The head part 1 is provided with at least one opening 2 and formed into a hollow shape provided with a neck part connection hole 4. The neck part connecting structure comprises: a neck part 5 constituted at least of a locking part 17 which can be inserted to the neck part connection hole 4 of the head part 1, an elastic member 19 capable of extending and contracting the locking part 17 in a vertical direction and a neck part main body 6 provided with the locking part 17 on the upper end so as to vertically move and horizontally rotate it; and a member 20 to be locked disposed inside the head part 1 and constituted of an abutting surface 21 which can be abutted on the inner peripheral edge of the neck part connecting hole 4 of the head part 1, an insertion hole part 22 to which the locking part 17 inserted through the neck part connection hole 4 can be inserted inside the head part 1 and a receiving part 23 for locking the locking part 1 pulled upwards against the elasticity of the elastic member 19 and rotated in a prescribed direction at a position shifted from the insertion hole part 22.