Abstract: Large-scale popularization and application of drip irrigation under mulch has provided a strong technical support for high yield of crops in Xinjiang and even in the arid areas of northwest China．In improvement of saline-alkali land, the mode of "irrigation with irrigation without drainage" under mulch drip irrigation only changes distribution of salt in plough layer, but can not discharge salt out of the soil．Long-term irrigation is prone to risk of explosive salt accumulation, and hidden pipe drainage is currently recognized as the most direct and effective method to improve saline-alkali land．At present, organic combination of membrane with drip irrigation and drainage tubes drainage formation of new irrigation technology, make full use of membrane with drip irrigation good steam warming suppression, water saving and salt suppression, at the same time using drainage tubes would be washed out saline soil in time, make salinization soil produces new water and salt balance, has got great progress in development and utilization of saline area in Xinjiang．Design parameters of drip irrigation combined with hidden pipe drainage system and law of soil water and salt transport in Xinjiang irrigation area were analyzed and summarized, and response of soil physical and chemical properties and crop yield to irrigation and drainage technology was summarized, in order to provide technical guidance for agriculture sustainable development of Xinjiang saline land．