Abstract: To investigate effects of pear branches returning to field on soil physicochemical properties, soil enzyme activity, and pear tree growth and development, field experiments were conducted．Experiment included a control treatment（CK）, a low-dose returning treatment（T₁, 4 kg/plant）, a standard-dose returning treatment（T₂, 8 kg/plant）, and a high-dose returning treatment（T₃, 12 kg/plant）．Results showed that T₁ and T₂ treatments significantly increased soil pH, organic matter content, and soil enzyme activity, while T₃ treatment increased soil potassium and phosphorus availability, decreased soil pH and nitrogen accumulation．T₁ treatment promoted new shoot growth in pear trees, while T₂ treatment yielded in the highest single-fruit weight, which increased by 35.3% compared to control treatment．Soil organic matter content and urease activity were significantly positively correlated with single-fruit weight．Research showed that moderate returning to field（8 kg/plant）could optimize soil function, promote pear tree growth, and improve fruit quality, while excessive returning to field produced adverse effects．