A method for knitting interchanged plating on a single face of technical face for a flat bed knitting machine which includes at least one needle bed that comprises a plurality of latch needles and a plurality of sinkers hinged on an upper end of the needle bed abutting respectively each latch needle, and a carriage movable reciprocally and linearly above the needle bed, characterized in that the method comprises the steps of: providing an indented indentation at a front end of each sinker that is movable interactively with each latch needle and a nose protrusion abutting the indentation; controlling the carriage to move reciprocally and linearly above the needle bed so that the latch needle is moved in a staged stitching displacement which includes a pause stitching operation; the staged stitching displacement including at least a first stitching section, a second stitching section and a delayed stitching section between the first stitching section and the second stitching section to generate the pause stitching operation; feeding a first coloration yarn and a second coloration yarn above the first coloration yarn at the same time to the flat bed knitting machine; moving the first coloration yarn and the second coloration yarn via a front edge of the nose protrusion to slide down at the same time for knitting while the latch needle is positioned at the second stitching section to form a standard plating in which the first coloration yarn is below the second color yarn, and continuing the knitting operation through the standard plating to form a single face fabric; and controlling the carriage to make the latch needle perform an interchanged stitching displacement when the single face fabric knitted via the standard plating has reached a predetermined position, and ordering the sinker while the latch needle is located in the interchanged stitching displacement to pick up the first coloration yarn above the second coloration yarn via a junction of a rear edge of the nose protrusion and the indentation, then releasing the yarns to form an interchanged plating in which the second coloration yarn is below the first coloration yarn. providing an indented indentation at a front end of each sinker that is movable interactively with each latch needle and a nose protrusion abutting the indentation; controlling the carriage to move reciprocally and linearly above the needle bed so that the latch needle is moved in a staged stitching displacement which includes a pause stitching operation; the staged stitching displacement including at least a first stitching section, a second stitching section and a delayed stitching section between the first stitching section and the second stitching section to generate the pause stitching operation; feeding a first coloration yarn and a second coloration yarn above the first coloration yarn at the same time to the flat bed knitting machine; moving the first coloration yarn and the second coloration yarn via a front edge of the nose protrusion to slide down at the same time for knitting while the latch needle is positioned at the second stitching section to form a standard plating in which the first coloration yarn is below the second color yarn, and continuing the knitting operation through the standard plating to form a single face fabric; and controlling the carriage to make the latch needle perform an interchanged stitching displacement when the single face fabric knitted via the standard plating has reached a predetermined position, and ordering the sinker while the latch needle is located in the interchanged stitching displacement to pick up the first coloration yarn above the second coloration yarn via a junction of a rear edge of the nose protrusion and the indentation, then releasing the yarns to form an interchanged plating in which the second coloration yarn is below the first coloration yarn.