Household appliances wireless control method and system

The invention discloses a household appliances wireless control method and system for controlling a plurality of household appliances distributed at different positions at home. The method comprises the steps: setting node types and parameters; initializing the network access of the system; maintaining the network access; maintaining the network; controlling a plurality of peripheral control nodes out of the network; and periodically accessing the network and maintaining the network. The system comprises a central coordinator, a plurality of controlled household appliances and a peripheral controller connected with the controlled household appliances, wherein the peripheral controller is divided into a first grade peripheral controller and a second grade peripheral controller according to the signal strength. On the basis of an SMAC (simplified marker and cell) protocol, the network maintenance of the on-line peripheral control nodes and the management of the network access and the network interruption can be timely preformed, and the control of the appliances can be realized within an effective time. The two-grade tree network networking mode adopted by a communication protocol is simple and proper in a networking mode, relatively simple in maintaining and building the network, and is higher in the reliability of the network.