A knitted fabric design system comprising: a display unit configured to display a design sheet that is grid-shaped such that a plurality of knitting courses, each including a plurality of knitting units lined up in a lateral direction, are lined up in a vertical direction, the knitting units corresponding to respective needles of needle beds of a flat knitting machine; an input unit with which a user can input knitting codes to the knitting units of the design sheet; and a design data generating unit configured to generate, based on the design sheet to which the knitting codes are assigned, design data that includes information relating to positions, on the design sheet, of the knitting units and the knitting codes assigned to the positions, characterized in that the knitted fabric design system further comprises: a data extracting unit configured to extract, based on the design data, movement information relating to a movement path corresponding to the position of a needle on which a stitch is temporarily held and an ultimate destination, being the position of a needle on which the stitch is held after the knitting operation defined by the corresponding knitting code has been executed, on the needle beds, of stitches corresponding to the knitting units; a derivation unit configured to obtain, based on the movement information, connection information relating to a connection state of stitches that are successive in a wale direction from a starting stitch to a termination stitch on the design data; and a display adjustment unit configured to cause the display unit to display, based on the connection information, the connection state drawn with a line so that the connection state is superimposed on the design sheet. a display unit configured to display a design sheet that is grid-shaped such that a plurality of knitting courses, each including a plurality of knitting units lined up in a lateral direction, are lined up in a vertical direction, the knitting units corresponding to respective needles of needle beds of a flat knitting machine; an input unit with which a user can input knitting codes to the knitting units of the design sheet; and a design data generating unit configured to generate, based on the design sheet to which the knitting codes are assigned, design data that includes information relating to positions, on the design sheet, of the knitting units and the knitting codes assigned to the positions, characterized in that the knitted fabric design system further comprises: a data extracting unit configured to extract, based on the design data, movement information relating to a movement path corresponding to the position of a needle on which a stitch is temporarily held and an ultimate destination, being the position of a needle on which the stitch is held after the knitting operation defined by the corresponding knitting code has been executed, on the needle beds, of stitches corresponding to the knitting units; a derivation unit configured to obtain, based on the movement information, connection information relating to a connection state of stitches that are successive in a wale direction from a starting stitch to a termination stitch on the design data; and a display adjustment unit configured to cause the display unit to display, based on the connection information, the connection state drawn with a line so that the connection state is superimposed on the design sheet. a data extracting unit configured to extract, based on the design data, movement information relating to a movement path corresponding to the position of a needle on which a stitch is temporarily held and an ultimate destination, being the position of a needle on which the stitch is held after the knitting operation defined by the corresponding knitting code has been executed, on the needle beds, of stitches corresponding to the knitting units; a derivation unit configured to obtain, based on the movement information, connection information relating to a connection state of stitches that are successive in a wale direction from a starting stitch to a termination stitch on the design data; and a display adjustment unit configured to cause the display unit to display, based on the connection information, the connection state drawn with a line so that the connection state is superimposed on the design sheet.