To prevent the reduction in strength in a connecting part, to enable connecting the plaited objects easily and to easily produce various kinds of plaited object composites in shape and size by putting a wire through a stitch hole which is formed in the mesh of the overlap part of the plaited object or the overlap part of the object so as to execute stitching.

A pair of plaited objects 1a and 1b which are mutually connected are arranged by overlapping facing end parts by prescribed width and connected in a stitch state by the wire (s) which is put through the hole d1 of a stitching member (d). That is, the stitching member (d) where the wire (s) is put through the hold d1 is lowered towards the overlap part 1c of the plaited objects 1a and 1b, a penetration is executed and the wire (s) put through the hole d1 is made to put through the overlap part 1c of the plaited objects 1a and 1c so as to execute connection in the overlap part 1c of the next plaited objects 1a and 1b to be in a stitch state in a same way.