[Objective] We conducted a field experiment to investigate the effects of intercropping green manure crops and their combination with ground fabric mulching on soil moisture，fertility，and apple yield. [Methods] The main treatments included intercropping ryegrass（NGR），oilseed rape（NGO），and alfalfa（NGA），the sub-treatments included combining these intercropping modes with mulching ground fabric under apple trees（GR/GO/GA），and the control treatment was traditional clean tillage（CK）. Additionally，¹⁵N labeled microplots were set up within the main and control treatments. The responses of soil moisture，nutrients，and fruit yield were explored under the apple-green manure intercropping system. [Results] All treatments reduced soil water content（SWC）compared to CK，among which the decreasing range of GR（1.7%）was the smallest. Soil water difference ratio（SWDR）in the main treatments were all negative，among which NGR and NGA had the smallest（0.5%）and largest（4.7%） absolute value，respectively. All treatments increased evapotranspiration（ET）compared to CK，among which the increasing range of GR（0.3%）was the smallest. All treatments reduced soil nitrate-nitrogen（SNN）content， compared to CK. Compared to the sub-treatments，SNN and soil ammonium-nitrogen（SAN）contents in the main treatments increased by 6.8% and 5.4% on average. Intercropping green manure（NGR，NGO，and NGA） reduced ¹⁵N loss by an average of 56.4%（p<0.05），compared to CK，with alfalfa and ryegrass showing the highest （39.4%） and lowest （19.7%） ¹⁵N utilization efficiency， respectively. Compared to CK， ryegrass intercropping treatments（NGR and GR）increased SOM and TN contents by an average of 1.5% and 0.2%， respectively. In contrast，alfalfa（NGA and GA）intercropping treatments decreased SOM and TN contents by an average of 15.2% and 15.4%，compared to CK. Ryegrass intercropping treatments（NGR and GR）showed the highest fruit yield and water use efficiency，with an average increase of 12.1% in yield and 8.8% in water use efficiency，compared to CK（p<0.05）. [Conclusion] Adopting the binary mulching pattern（ground fabric mulching under apple trees+ryegrass intercropping between rows ）is beneficial to decreasing water consumption， nutrient loss，and increasing fruit yield and water use efficiency.