Abstract: In order to save water and meet the water demand of crops in different growth periods, an irrigation system is required to detect the information of soil moisture, locate the sample points with GPS and control the executing machine. Virtual Instruments graphical programming LabVIEW, data acquiring board and varieties of sensors were used to acquire the soil moisture and orientation information of the sample points at real time. The acquired data were analyzed and the data were transmitted with GSM to a remote server. Combined with fuzzy technology on server side, the irrigation executing machine was controlled to implement the precision irrigation.