Along with the continuous development of science and technology and people for the pursuit of better household environment, intelligent household got rapid development, has a huge market Compared with other forms of network mode, ZigBee wireless network mode has a large scale, low power consumption, low cost and easy extension, etc;Sensor network technology through the arrangement of various sensors, can easily perceive various household information, has its unique advantages in the field of smart home, at the same time by the unique advantages of ZigBee technology, take it as the core of wireless smart home system is now the best smart home solutions, is also a few years intelligent household is an important direction of In this paper introduces the background of smart home and ZigBee technology, respectively for hardware and software design of the wireless sensor Hardware part mainly has carried on the CC2430 core circuit, power circuit, crystals, reset circuit and AD reference voltage circuit, sensor module and communication module design, Software part mainly designs the TinyOS transplantation and sensor node based on CC2430 communication function realization and so Finally, the whole thesis is summarized and prospect