Method for sewing fabric using an overlock sewing machine , in which over-edge stitching is performed through mutual cooperation of: a needle that has, at a tip thereof, a thread hole , into which the needle thread is inserted, and that moves up and down; an upper looper that has, at a tip thereof, a thread hole , into which a first looper thread is inserted, and that operates intersecting a feed direction of the fabric ; and lower looper that has, at a tip thereof, a thread hole , into which the second looper thread is inserted, and that operates intersecting the feed direction of the fabric , wherein a position, at which over-edge stitching is performed on a side face of a claw of a needle plate , is disposed outwardly spaced from the edges of the pieces of fabric that are cut by upper and lower knives , the method comprising aligning the edges and forming a stitch along the edges while causing a part of a needle thread to run through two vertically superposed pieces of fabric at regular intervals, from above the two pieces of fabric ; on the upper face of the upper fabric , forming a loop by running a first looper thread in zigzag towards beyond the edges so as to entwine two needle threads that pass through the stitch holes ; on the lower face of the lower fabric , forming a loop by causing an annular leading end of the passed-through needle thread to extend beyond the edge of the fabric (2a, 3 a); beyond the edges of the pieces of fabric , linking the first looper thread and the needle thread as a result of the second looper thread repeatedly entering, from above, each loop hole that is formed by the first looper thread , exiting the loop hole while entwining two opposing threads of two adjacent loops formed by the needle thread at the bottom of the loop hole, and entering thereupon a neighboring loop hole formed by the first looper thread , to perform over-edge stitching at a position away from the edges of the pieces of fabric ; and thereafter, spreading out the two pieces of fabric , to i) join the two pieces of fabric in a state where the respective edges are connected to each other or ii) thereby fold back the edge of the one piece of fabric , and join the two pieces of fabric in a state where the edge of the other piece of fabric overlaps the fold-back portion, relaxing the tension of the needle thread to cause a lower looper to carry the annular leading end of the needle thread that has run through two pieces of fabric , to a position outwardly spaced from edges of the pieces of fabric , thereby performing over-edge stitching by the first looper thread , the second looper thread and the needle thread at the position; characterized in that the method further comprises passing a needle thread through a threading hole of a looper thread take-up , such that, when the lower looper moves , the lower looper carries the annular leading end of the loosened needle thread . i) join the two pieces of fabric in a state where the respective edges are connected to each other or ii) thereby fold back the edge of the one piece of fabric , and join the two pieces of fabric in a state where the edge of the other piece of fabric overlaps the fold-back portion, <EOS>