Abstract: An automatic sewing apparatus is disclosed for sewing together a pair of first edges of two overlapped bodies by a cross seam, each of the bodies being formed by sewing together a pair of second edges of two pieces of overlapped cloth, wherein the two bodies are layered with the margins to the seam of the second edges facing away from each other, and the apparatus comprising a sewing device for sewing the overlapped bodies together, a table for supporting the bodies to be sewn, and a sewn edge fold-down device for folding down the margin of one of the bodies in the direction to feed the cloth, and the margin of the other body in the opposite direction before sewing the first edges.