To enable yarn stretching operation in a low speed condition and yarn switching operation at a specified rewinding speed smoothly.

A slide correction value at the time of computing a command frequency for an induction motor in its free wound state not touching an empty tube 30 in which a contact roller 4 after yarn stretching or yarn switching is attached to a spindle 2 or in its soft touch state with a low contact is computed by a formula S=αV2+βV+γ provided that operation speed of the rewinder is V(Km/min), 1st factor α satisfies 0.05≥α≥0 [%/(Km/min)2], 2nd factor βsatisfies 0.3≥β≥-0.2 [%/(Km/min)], 3rd factor γ satisfies 0.4≥γ≥0 [%].