The study of the effects of Caragana compost combined with different tillage depths on soil quality and yield provides a theoretical basis for the utilization of agricultural waste resources and the stable and healthy development of facility farmland in Northwest China.Cucumber was used as the research object，and three continuous seasons of field experiments were carried out.Two base fertilizer treatments (traditional chicken manure，and Caragana compost) and four tillage depth treatments (no tillage，tillage 15 cm，tillage 35 cm，tillage 45 cm) were set up，with a total of 8 treatments.Soil nutrients，soil enzyme activities，crop biomass and yield of cucumber were analyzed.Results showed that:(1)Compared with the traditional chicken manure，the application of Caragana compost significantly increased soil pH and soil fertility index by 1.42% and 1.84%，respectively.EC，organic matter content，available phosphorus content，urease activities and phosphatase activities were significantly reduced by 2.61%，5.36%，27.84%，3.51% and 3.44%，respectively.After continuous planting，this difference gradually weakened，and the two fertilizers had no significant effect on cucumber yield.(2) Soil EC，total nitrogen content，total phosphorus content，available phosphorus content and urease activity all decreased with increasing tillage depth，and there was no significant difference in nitrogen and phosphorus content between no-tillage and tillage 15 cm treatments，and they were significantly higher than the others.There was no significant difference in cucumber yield among different tillage treatments.The soil fertility index increased first and then decreased with the increase of tillage depth.The soil fertility index of the tillage 15 cm treatment was the highest，which was significantly increased by 1.20%，5.35% and 9.92%，respectively，compared with the treatment.(3) After continuous planting，soil organic matter and phosphorus were accumulated，and cucumber yield was still affected by the cultivation season.Cucumber yield in autumn and winter was lower than that in early spring，and the change trend of soil fertility was opposite.Therefore，the continuous application of Caragana compost made an important contribution to the increase of cucumber yield and soil fertility.At the same time，the combination of deep tillage improved the soil structure and surface layer accumulation of nutrients，and effectively alleviated soil acidification and salinization.Season significantly affected soil fertility and crop yields.