Abstract: In order to study the effects of soil management measures on the incidence of tobacco bacterial wilt disease(TBWD), the effects of ploughing depth, soil amendment type and application mean on the incidence and disease index of TBWD and their relationships with soil physiochemical properties were studied via field experiments. The results showed that deep-ploughing did not effectively inhibit the occurrence of TBWD, and the incidence and disease index of TBWD tended to increase with the increase of ploughing depth. Amendmentapplication accompanying ploughing affected the incidence of TBWD significantly: other than applying lime only, applying biochar or compost or lime, biochar and compost in pairs could decrease the incidence of TBWD, especially applying biochar. The influences of amendment application accompanying ploughing on TBWD incidence related to its effects on soil properties.Correlation analysis showed that the incidence of TBWD significantly negatively correlated to the contents of organic matter, alkaline hydrolytic N, available Fe, available Mn and exchangeable Mg in soil, while positively correlated to soil p H. It is recommended that for the purpose of reducing the incidence of TBWD, the depth of ploughing should be controlled within40 cm, however, adding organic fertilizer, middle and trace elements along with biochar and compost application would be helpful.