The invention relates to an intelligent network system device of an embedded household data center. The system device comprises a device casing and a master control circuit board; and the master control circuit board is connected with an embedded master control CPU unit, a memory, a fiber and coaxial access unit, a route switching and selecting unit, a WIFI data transmission unit, a GPRS communication unit, a Zigbee communication unit, a 315MHz communication unit, an infrared communication unit, a Bluetooth communication unit, an RS485 communication unit, an entrance guard interface unit, an RJ45 interface unit, a governmental emergency broadcast information screening and broadcasting unit, an LCD touch screen control unit, an instrument and sensor data obtaining unit, an alarm SOS unit, a medical care SOS unit, an emergency contact unit, a factory setting button, a system work state indicating tool, a system reset unit, a system expansion and upgrade interface unit, a fiber access adapter and a coaxial access adapter.