The paper introduced the trace irrigation technology of Beijing Puquan company, established the trace irrigation district of well water for grape and carried out experiment. During the test, it monitored the soil moisture range, the change of soil water holding rate and the growth situation of crop ,and compared the method with furrow irrigation of field grape. The test results show that the water-saving effect of trace irrigation is superior, the soil of crop root layer is in suitable range of moisture content for long-term and can create a good water environment for crop growth.The irrigation uniformity is higher than that of drip irrigation. The paper finally proposed the schedule of grape trace irrigation.