A tape feeder includes: a feeder bottom support that rotatably holds a sprocket; and a tape presser mechanism that presses a carrier tape toward the feeder bottom support. The tape presser mechanism includes a tape presser that is at one end pivotally supported by the feeder bottom support and swingable to the feeder bottom support and that presses the carrier tape toward the sprocket while situated at a close position where the tape presser is closed to the feeder bottom support, and a tape presser operation member that is swingably attached to the feeder bottom support and that swings between a fixed position where the tape presser operation member presses the other end of the tape presser toward the feeder bottom support and an unfixed position where the other end of the tape feeder is released from pressure.