Abstract: In order to explore new methods for valsa mali control and soil improvement, effects of bacterial manure on Korla fragrant pear valsa mali and soil nutrients were studied. Field investigation, sampling and lab analysis were used to survey the incidence of valsa mali, measure the contents of mineral nutrients in soil and compare and analyze them with that of CK. The results showed that the incidence of valsa mali reduced more than 78.8% compared with CK after the application of Guangheyuan bacterial manure; the contents of N, P, K increased by 5.7, 61.8 and 40 g/kg, and B, Cu, Fe, Zn and Mn contents increased by 1.24, 0.94, 6.64, 3.22 and 0.16 mg/kg, respectively, in 0-20 cm soil layer, while the contents of N, P, K increased by 50.6, 28.3 and 26 g/kg, and B, Cu, Fe, Zn and Mn contents increased by 0.32, 0.45, 8.63 and 0.76 mg/kg, respectively, in 20-40 cm soil layer. The application of Guangheyuan bacterial manure could effectively decrease the incidence of fragrant pear valsa mali and significantly improve the contents of organic matter and mineral nutrient elements in different soil layers.