Swivel child car seat

A swivel child car seat (1) comprises a base (11) having a bottom part (12), a disk-shaped swivel pedestal (14) mounted on the base bottom part (12) of the base for free turning, and a seat body (13) supported on the swivel pedestal (14). The swivel pedestal is fitted in a guide groove formed in the base part so as to move forward and rearward along the guide groove. The swivel pedestal is held fixedly in place by a block fitted in the guide groove.