Abstract: Through taking and test the interval of laying the different drip irrigations of underground drip irrigation, we confirmed this area adopt underground drip irrigation technology, the appropriate length of lay interval is100 meters. and the best products are “yirun” and “netafim”( heavy wall and thin wall), Loam under the terms, drip irrigation with the lay interval within 120 centimeters can take shape on the moist story of one underground, no matter which kind of sow way was used in the field, the rows of sow doesn’t have to be inosculate with the dirp irrigation zone, which can also meet crops and need water request