Abstract: Meloidogyne incognita harms plant roots in production, this experiment in order to explore the control effect of Bamboo pyroligneous liquid and plant extract on Meloidogyne incognita. In this study, the second instar larvae and eggs of Meloidogyne incognita were treated by dipping method with different concentrations of Bamboo pyroligneous liquid, plant extract and their mixture. The results showed that the Bamboo pyroligneous liquid and mixed liquid could reach 100% corrected mortality rate at 5 mL/L, plant extract was obviously lower than that of Bamboo pyroligneous liquid, which was 75.79% at 5 mL/L for 72 h. When the concentration was 10mL/L, the maximum inhibitory rates of Bamboo pyroligneous liquid, plant extract and mixed liquid separately were 84.96%, 64.33% and 87.49%. Treated for 24 h, LC50 value of the second instar larvae treated with Bamboo pyroligneous liquid was the lowest, which was 1.1190 mL/L. Thus, Bamboo pyroligneous liquid and plant extract on Meloidogyne incognita have a certain inhibitory effect, and compared with plant extract, the effect of Bamboo pyroligneous liquid on the prevention and control of Meloidogyne incognita was more significant.