A component supplying device of the disclosure includes a main body, a carrier tape transport unit which transports a component to a component pick-up position, a detector which detects presence or absence of a carrier tape in the transport path, a designation unit which designates a transport mode of the carrier tape using a flag based on a change in the presence or absence of the carrier tape which is detected, a storage unit which stores the presence or absence of the carrier tape, the flag which is designated, and information of the component which is stored by the carrier tape which is mounted in the component supplying device, and a determination unit which determines a processing operation to be performed when power which is supplied to the component supplying device is reintroduced based on the presence or absence of the carrier tape and the flag which is designated.