The invention relates to a mobile phone household intelligent control system comprising multiple electric appliance controllers, a small telephone program control switch and a master controller. The output of each electric appliance controller is connected in series on an original socket or a switch. Indication code numbers are transmitted from a fixed-line telephone or a mobile phone in communication, the switch transmits the received instruction code digital signals to the master controller through an interface circuit, and the master controller performs decoding and then performs corresponding operation.