To provide a long material carrier device, suppressing the generation of noise and end face deviation and carrying the long material in the longitudinal direction.

A plurality of free carriages 1, sharedly supporting a plurality of parts of a long material A along a groove type guide passage 21 of two streaks of crawler tracks 2 arranged in parallel, are arranged closely into a vertical line. Carrier wheels 31 rotated about a horizontal shaft 32 and having engaged teeth 33 in the outer circumference are provided in both ends of the crawler track. The carrier wheel 31 is rotated with the engaged tooth 33 of the carrier wheel 31 engaged with an engaged ring 12 of the free carriage 1, pressurizes the free carriage 1 one after another, and each free carriage 1 is simultaneously and circularly moved along the crawler track 2.