In recent years, power management and power economic management is one of hot topics; the studies of wireless network are more and more popular such as ZigBee wireless sensing network, radio frequency identification (RFID) and other technologies. A great amount of wireless applications are applied to family, industry, medical and relevant environmental. Zigbee wireless sensing network and monitoring system are the hardware design to measure the voltage and the current of economic load dispatching system in the home. The 8051 interfacing circuit collects these data and sends them to the central computer by using wireless network and ZigBee technology. The power loads and loading identification of the home are controlled and managed by central computer remotely at any time. In business, we can save cost of man power by using this system.