The authors indicate that it is extremely essential for the Zhangye Municipality to study water savings key technologies in agriculture suitable to local conditions and to establish,extend and apply an integration mode of water saving technologies in order to fulfill the objective of building a water-saving society and guaranteeing sustainable development of agriculture.The integration mode of water saving in agriculture should be adaptable for field cereal crops,high-income cash crops and high facility-benefit crops.Investigation must be conducted on the water savings key technologies in the following aspects:irrigation water conveyance and allocation,surface irrigation,participatory irrigation water management with water rights orientation,crop irrigation system under insufficient irrigation conditions,biological and agricultural water-saving,conjunctive use and optimal allocation of regional surface water and groundwater.Different water-saving technologies,relevant auxiliary approaches as well as different extension ways aiming at different application objects should be adopted in the integration mode.At the same time,suitable scales,principles for selecting water-saving irrigation technologies,extension and application ways and developing extension service systems etc.,should be taken into account and studied during extension of the integration mode of technologies.