To reliably prevent any deformation at an end of a packaging film when splicing the packaging film, and to reliably connect the packaging film.

A film splicing device 30 has a holding mechanism 80. The holding mechanism 80 has first and second casings 83, 84 having first and second supporting faces S1, S2 to support lower end faces of films F1, F2, and a vacuum apparatus VA capable of sucking air. First and second suction holes which are opened in the first supporting face S1 and the second supporting face S2 and communicated with the vacuum apparatus VA are formed in the casings 83, 84. When affixing an adhesive tape 61 by a tape affixing mechanism 60, an opening part to be communicated with the vacuum apparatus VA of the first and second suction holes is located at least on lower surfaces of both ends in the width direction of the ends of the films F1, F2, and not projected outward of both ends in the width direction of the end of the film F1.