In order to clarify the desilication ability of Bacillus aryabhattai MB35-5 on the silicate mineral and field application effect on sugar beet growth，the indoor MB35-5 strains incubation experiment on degradation magnesium silicate combined with field application on sugar beet growth were carried out.Based on the indoor test， the concentrations of watersoluble silicon of MB35-5 strains liquid and MB35-5 strains powder incubation treatments increased by 6.47 and 10.91 mg/kg with growth rate of 149.1% and 251.4%， respectively， compared with magnesium silicate + water treatment.Based on the field test， from the treatment with MB35-5 strains liquid 15.0 and 37.5 L/hm²， the soil available silicon content increased by 27.07 and 29.93 mg/kg with the increase rates of 24.58% and 27.18%， respectively， compared with conventional fertilizer treatment； the thickness of sugar beet leaves increased and the obvious increase happened on the 10th day by 0.04 mm； the sugar beet plant height increased by 3.70 and 2.41 cm with the increase rates of 6.70% and 4.26%； the SPAD value in sugar beet leaves was 2.55 and 1.83 higher with the increase rates of 6.15% and 4.37%， respectively； the yield of sugar beet increased by 7540.5 and 14359.5 kg/hm² respectively with the increase rate of 12.38% and 23.57%.It could be concluded that Bacillus aryabhattai MB35-5 has strong desilication abilities on silicate minerals.Application of Bacillus aryabhattai MB35-5 on the basis of conventional fertilizer could significantly increase sugar beet yield.Sugar beet leaf thickness， SPAD value indexes and plant height were significantly improved.