The invention discloses an energy-saving irrigation device for the arid region. The device comprises a rectangular box, wherein a water taking docking device is arranged on one side of the rectangularbox, a controller is arranged on the side surface of the rectangular box, a water hose collecting and releasing adjustment device is arranged on the inner surface of the rectangular box, an irrigation end moving device is arranged on the other side of the rectangular box, and the water hose collecting and releasing adjustment device can randomly adjust the irrigation range by curling and shrinking water hoses; the irrigation end moving device can achieve the purpose of maximum water saving by movement control of a water outlet end. The device has the benefits as follows: the device is simpleand convenient to operate and high in practicability.