The invention discloses an intelligent household control system. The intelligent household control system comprises an intelligent gateway used for controlling and monitoring other equipment, an on-off control device used for controlling on and off of household electrical appliances, a situation switch used for receiving a radio frequency signal emitted by the intelligent gateway, an intelligent hand-operated terminal used for communicating with the intelligent gateway through the Internet or the local area network, an alarm device used for emitting an alarm signal, a transponder used for communicating with the intelligent gateway and communicating with the external equipment through a serial port, a monitoring camera used for monitoring outdoor and indoor places, a door sensor used for emitting a radio frequency signal during opening and closing of doors and windows, and a monitoring device used for monitoring smog, combustion gas, human bodies and the environment, wherein the situation switch, the on-off control device, the alarm device, the transponder, a detection device and the door sensor are all connected with the intelligent gateway. The intelligent household control system can be applied to outdoor and indoor places such as families, offices and factories and can be in matching with an E-serial intercommunication system indoor set for use.