A preform carrying apparatus including: a rotary disk; a fixed plate disposed opposite to the rotary disk; first and second cams provided on the fixed plate; a support arm which can freely expand and contract in the radial direction from the rotary disk, the base end of which is rockably supported by the rotary disk, and which is provided with a first cam follower which is guided by the first cam and a second cam follower which is guided by the second cam; and a coupling disposed at the forward end of the support arm so as to removably support the neck portion of the preform. The support arm is expanded and contracted in the longitudinal direction in accordance with the trailing position of the first cam follower and rocked around the base end as the fulcrum in accordance with the trailing position of the second cam follower. The feeding of the preform can be accelerated, decelerated or stopped during the continuous rotation of the rotary disk.