A description the present invention will be discussed with reference to the drawings fig1 shows a fabric presser foot 2 and other elements used in the invention attached to a sewing machine not shown presser frame 1 is provided at the underside thereof with a substance having a large frictional resistance such as rubber not shown for preventing slippage between the presser foot attachment and the fabric to be sewn the numeral 2 is a presser foot secured to a presser holder 4 which latter is screwed to a presser bar 3 the presser frame 1 is held by the presser foot 2 and is movable to the right and left in fig1 the numeral 5 is a rack formed on a guide plate 6 fixed to the presser frame 1 which rack 5 is held by the guide plate 6 and is movable right and left in fig1 the numeral 7 is a thumbscrew for the rack 5 the thumbscrew 7 is tightened and fixed at a desired position relative to scales 8 marked on the presser frame 1 for designating the length of a pattern to be stitched so that the rack 5 is secured to the presser frame 1 at a desired position the presser foot 2 is provided with a mark 9 indicating the needle dropping positions in straight and zigsag stitching a spring not shown is provided between the presser foot 2 and the presser frame 1 to bias the presser frame 1 toward the right in fig1 until the presser frame 1 abuts a stop not shown at the position shown where the 0 point 8a of the.