Provided are a carrier tape feeding device, a chip mounting system, and a chip mounting method. The carrier tape feeding device includes: a transfer unit for transferring a first carrier tape and a second carrier tape sequentially to a chip mounting apparatus; a rotation unit selectively engaged to a part of the first carrier tape with which a part of the second carrier tape contacts, and for transferring the second carrier tape to the transfer unit; a detecting sensor unit for detecting sequential existence of the first carrier tape or the second carrier tape supplied to the transfer unit, and existence of the second carrier tape supplied to the rotation unit; and a controller for determining existence of the first carrier tape based on a signal detected by the detecting sensor unit, and controlling at least one of the transfer unit and the rotation unit to be driven based on the existence of the first carrier tape.