Abstract: The main objective of this research is to improve the utilization rate of agricultural irrigation water with a soil moisture monitoring system based on Zigbee wireless network and CC2430 MCU. Unlike the complex wiring and costly wired network, ZigBee is a new mesh networking standard, which has the advantages of self-network-forming, self-healing and ultra-low power consumption. This solar-powered system realized real-time monitoring and recording of soil moisture information, which could provide data supports for further water-saving irrigation strategy planning as well. The system has been developed and tested with the ZigBee mesh network topology. Results showed that the system has high stability and low packet loss rates. This system could record the soil moisture of irrigated areas timely and accurately and keep the moisture among the scope which is suitable for the plant growth. The research results can provide references for further development of precise irrigation.