A home network system using a Z-Wave network includes a wired/wireless Z-Wave bridge having a Z-Wave communication unit to which a plurality of home automation devices are accessed through the Z-Wave network and an Ethernet communication unit which is accessed to a main server through the Internet, and a main server providing an application for a remote control of the home automation device, and performing MAC authentication to allow access to the wired/wireless Z-Wave bridge upon request by the portable terminal, in which the MAC authenticated portable terminal of the wired/wireless Z-Wave bridge is accessed to the home automation devices to perform remote control.