Abstract: The purpose of the present invention provides a disk transfer unit and inspection apparatus that can transfer a plurality of disks and increase throughput. The present invention includes: a supply/discharge/transfer portion fetching disks from a disk supply portion and discharging inspected disks to a predetermined place; an inspection unit transfer portion transferring the disks within an inspection unit; and a delivery/transfer portion transferring the disks between the disk supply/discharge/transfer portion and the inspection unit transfer portion. The delivery/transfer portion comprises: a base having a rotational center and is formed in an arc-like shape with center at the rotational center and providing with even numbers of disk mounting portions for mounting the disks and a driving portion for moving the base up and down and rotating the base about the rotational center, and transfers the disks between the supply/discharge/transfer portion and the inspection unit transfer portion.