In order to alleviate the contradiction between water supply and demand, improve the water use efficiency of apple orchards in Northern Shaanxi, it is of great significance to formulate a water-saving irrigation schedule suitable for this region. Based on the meteorological data of Suide County over the period of 1961-2017, the sufficient and deficit irrigation scheduling of apple orchards under drip irrigation and pipe irrigation were analyzed using water balance method. The results showed that apple orchards should be irrigated in different hydrological years. All irrigation events should be implemented in the first three growth stages, especially in bud development & flowering stage and the leaf expansion stage. Under sufficient irrigation, irrigation times were 3、4、5、6 in different hydrological years (25%、50%、75%、95%), irrigation quota for drip irrigation and pipe irrigation were 55、80、115、135 mm and 85、125、175、200 mm, respectively. Under deficit irrigation, irrigation times were reduced by one time in bud development & flowering stage in different hydrological years, irrigation quota for drip irrigation and pipe irrigation were 50、80、110、120 mm and 75、120、165、180 mm, respectively. Compared with sufficient irrigation, deficit irrigation delayed the irrigation time, especially at bud development and flowering stage, but the effect of water-saving was not obvious.