A transfer apparatus for mounting and transferring a transferred component on a driven means, the transfer apparatus includes: a driving means for rotating a driving side pulley by a rotational driving force of a motor to move a belt wound around the driving side pulley, thereby moving the driven means coupled to the belt in a predetermined direction; and a transfer monitoring means for monitoring a transfer state of the driven means, wherein the transfer monitoring means detects a torque value of the motor required to move the driven means, calculates a torque differential value of the torque value with respect to time based on the detected torque value, and detects the transfer state using the calculated torque differential value.