A carbon dioxide electrolytic device comprising: an electrolysis cell including a cathode to reduce carbon dioxide and thus produce a carbon compound, an anode to oxidize water or hydroxide ions and thus produce oxygen, a carbon dioxide supply unit to supply carbon dioxide to the cathode, a electrolytic solution supply unit to supply an electrolytic solution containing water to at least one of the cathode and the anode, and a separator to separate the anode and the cathode; a power supply connected to the anode and the cathode; a reaction control unit to cause a reduction reaction of the carbon dioxide in the cathode and an oxidation reaction of the water or hydroxide ions in the anode by passing an electric current from the power supply to the anode and the cathode; a refresh material supply unit including a gas supply unit to supply a gaseous substance as a part of the refresh material to at least one of the anode and the cathode, and a liquid supply unit to supply a rinse solution as a part of the refresh material to at least one of the anode and the cathode; a data collection control unit configured to collect a cell output of the electrolysis cell containing the Faradaic efficiency of the carbon compound defined as a proportion of an electric current contributing to a production of the carbon compound to an entire electric current passing through the electrolysis cell, and to determine whether the collected cell output containing the Faradaic efficiency of the carbon compound satisfies a request criteria of the cell output containing the Faradaic efficiency of the carbon compound; and a refresh control unit which stops supply of the electric current from the power supply by the reaction control unit and stops supply of the carbon dioxide and the electrolytic solution, and operates the refresh material supply unit, based on a determination result by the data collection control unit that the collected cell output containing the Faradaic efficiency of the carbon compound does not satisfy the request criteria of the cell output containing the Faradaic efficiency of the carbon compound. an electrolysis cell including a cathode to reduce carbon dioxide and thus produce a carbon compound, an anode to oxidize water or hydroxide ions and thus produce oxygen, a carbon dioxide supply unit to supply carbon dioxide to the cathode, a electrolytic solution supply unit to supply an electrolytic solution containing water to at least one of the cathode and the anode, and a separator to separate the anode and the cathode; a power supply connected to the anode and the cathode; a reaction control unit to cause a reduction reaction of the carbon dioxide in the cathode and an oxidation reaction of the water or hydroxide ions in the anode by passing an electric current from the power supply to the anode and the cathode; a refresh material supply unit including a gas supply unit to supply a gaseous substance as a part of the refresh material to at least one of the anode and the cathode, and a liquid supply unit to supply a rinse solution as a part of the refresh material to at least one of the anode and the cathode; a data collection control unit configured to collect a cell output of the electrolysis cell containing the Faradaic efficiency of the carbon compound defined as a proportion of an electric current contributing to a production of the carbon compound to an entire electric current passing through the electrolysis cell, and to determine whether the collected cell output containing the Faradaic efficiency of the carbon compound satisfies a request criteria of the cell output containing the Faradaic efficiency of the carbon compound; and a refresh control unit which stops supply of the electric current from the power supply by the reaction control unit and stops supply of the carbon dioxide and the electrolytic solution, and operates the refresh material supply unit, based on a determination result by the data collection control unit that the collected cell output containing the Faradaic efficiency of the carbon compound does not satisfy the request criteria of the cell output containing the Faradaic efficiency of the carbon compound.