Abstract: An apparatus for guiding yarn into a hook or to a predetermined position of a rear face of a needle of a flat knitting machine, and for guiding the yarn without making large horizontal advancing and retracting movements of a yarn guiding member of the yarn guiding apparatus. The apparatus guides the yarn, when a yarn pushing down operating edge at an end of the yarn guide member is engaged with and pushes down the yarn so that the yarn is slidably moved, without applying a high resistance to the yarn and parallel needles and sinkers, on at least one pair of needle beds having head portions opposed to each other with respect to the center of knock-over edge portions. Yarn holding members, each having a yarn pushing down edge operating at an end thereof, are supported for sliding movement toward the knock-over edge portion, with means for moving each of the yarn pushing down operating edges downward during or after sliding advancement of the yarn holding member.