With the improvement of People's living quality, the demand for convenience, comfort and intelligence of smart home is more and more high, so the speech recognition and control technology is very important in smart home.The system adopts ZigBee module to collect and transmit terminal information, and SNR8016 is used as speech recognition module.Its main control center and each module for data exchange, to achieve indoor LED lights, curtains, air conditioning, dehumidifiers and other electrical control.After testing and verification, the system can realize the speaker-independent intelligent control of household electrical switches and voice broadcast.The system has the advantages of low cost, low power consumption, easy operation, safety and reliability.It can bring users a better sense of experience and comfort.