To provide a selvage forming apparatus to prevent the loosening of the weft of the selvage part in the case of a selvage formation.

A rotary member 8 having a pair of guiding parts 14, 15 to pass different selvage yarns 12, 13 is driven with a driving apparatus 9, the rotation of the rotary member is controlled with a controller 11 and the rotary member is rotated in one direction and then in the other direction to form a selvage. In the electric selvage-forming apparatus 10 having the above actions, a twist free from an inserted weft 7 is formed by the reversing action in the case of reversing the rotation of the rotary member 8 from one direction to the reverse direction.