A device information management system, characterized by comprising: a device (30, 130, 250) comprising a device controller (35, 135, 255) that outputs a run control signal for an air conditioning apparatus and obtains device information on devices constituting the air conditioning apparatus, and a device communicator (32, 132, 252); and a terminal apparatus (40, 140, 205) comprising a terminal controller (43, 143, 263), a terminal communicator (45, 145, 265, 42, 142, 261) that communicates with the device, and a terminal display (41, 141, 260), a cloud server (50, 150, 206) communicable with the terminal apparatus, wherein the terminal apparatus obtains the device information transmitted from the device controller, the terminal controller transmits the obtained device information to the cloud server, and the cloud server stores therein the device information, characterized in that the device communicator is a light emitter (32, 132, 252), the terminal communicator is a light receiver (42, 142, 261) that performs visible light communication with the light emitter of the device, the terminal apparatus, by the device controller performing light emission control for the light emitter, allows the light receiver to receive the device information transmitted from the light emitter through the visible light communication, and allows the device information to be obtained, and the terminal apparatus can receive property information on a plurality of properties where the air conditioning apparatus is installed, the terminal apparatus transmits the property information to the cloud server, and the cloud server stores therein the property information in association with the device information. a device (30, 130, 250) comprising a device controller (35, 135, 255) that outputs a run control signal for an air conditioning apparatus and obtains device information on devices constituting the air conditioning apparatus, and a device communicator (32, 132, 252); and a terminal apparatus (40, 140, 205) comprising a terminal controller (43, 143, 263), a terminal communicator (45, 145, 265, 42, 142, 261) that communicates with the device, and a terminal display (41, 141, 260), a cloud server (50, 150, 206) communicable with the terminal apparatus, wherein the terminal apparatus obtains the device information transmitted from the device controller, the terminal controller transmits the obtained device information to the cloud server, and the cloud server stores therein the device information, characterized in that the device communicator is a light emitter (32, 132, 252), the terminal communicator is a light receiver (42, 142, 261) that performs visible light communication with the light emitter of the device, the terminal apparatus, by the device controller performing light emission control for the light emitter, allows the light receiver to receive the device information transmitted from the light emitter through the visible light communication, and allows the device information to be obtained, and the terminal apparatus can receive property information on a plurality of properties where the air conditioning apparatus is installed, the terminal apparatus transmits the property information to the cloud server, and the cloud server stores therein the property information in association with the device information.