A fuzzy control irrigation system based on ZigBee technology is proposed in this paper. It consists of terminal node, route-control node, ZigBee head node as well as central monitoring system, and has applied to real-time monitor and auto-control for soil moisture. This system adopts the star-mesh topology WSN in underlying network and GSM for remote management. It can switch between auto-fuzzy operation and remote manual operation. This system would not only solve the problems, like high expenses, low precision, knotty power supply and complex expansion, appropriately, but also add optimism to the algorithm optimization in other realms.