Provided is an automated culture device in which the exchange of a culture medium or the exchange of a gas in a culture vessel that is taken from the device is not needed. The device is equipped with multiple culture vessels (500 to 530), flow channels respectively connected to the multiple culture vessels, a vessel selection unit (300) for controlling a liquid or a gas that is to be sent to the culture vessels through the flow channels, and a control unit (400) for controlling the vessel selection unit, wherein the control unit (400) detects the disconnection of some of the flow channels which correspond to some of the culture vessels among the multiple culture vessels and alters the manner of the control of the sending of the liquid or the gas.
