Disclosed is an apparatus for communicating parameter of an inverter, the apparatus being connected to a plurality of inverters for communication, includes a communication unit for communicating with the inverter to transmit and receive parameter of the inverter; and a controller for storing parameter of the inverter in at least one of a storage address corresponding to an inherent identification number of the inverter, a user terminal and an external storage device according to an inputted command signal, or transferring parameter of the inverter to be transmitted, to the communication unit and then to at least one of the inverter, the user terminal and the external storage device.