A data interfacing apparatus and method of a network electronic device are provided. The data interfacing apparatus includes a data receiving unit to receive execution packet data to execute functions of the a network electronic device data and control packet data to control the network electronic device from a host via a network; a data storage controlling unit to control storage of the execution packet data and/or the control packet data; a data storage unit to store the execution packet data and/or the control packet data; a network processing unit to generate transfer descriptors of the execution packet data stored in the data storage unit and/or generate a control block of the control packet data stored in the data storage unit; and an interface controlling unit to transmit packet data corresponding to the transfer descriptors to the network electronic device through direct memory access and/or transmit packet data corresponding to the control block to the network electronic device, and to receive response packet data from the network electronic device as a response to the control packet data. Accordingly, data is transmitted between a network electronic device and the data interfacing apparatus at high speeds by reducing local bus bandwidth occupancy rates of the network electronic device and the data interfacing apparatus. In addition, it is possible to simplify codes and minimize header information by using a streaming channel through direct memory access to skip pretreatment operations to interpret command languages.