A reeling device includes: a left spool body; a right spool body; and a yarn transfer mechanism. A first rotation axis of the left spool body and a second rotation axis of the right spool body are parallel to each other, and a position of the left spool body around which the yarn-shaped body is to be wound and a position of the right spool body around which the yarn-shaped body is to be wound are arranged side by side on a first imaginary plane orthogonal to the first rotation axis and the second rotation axis. After a hollow yarn collection is formed in the left spool body, a yarn-shaped body leading portion of the yarn transfer mechanism moves the yarn-shaped body from the left spool body to the right spool body along the first imaginary plane.