Abstract: In order to achieve the efficient utilization of coal direct liquefaction residue,the effects of gasification temperature,water vapor content and catalyst residual on gasification reactivity of semi-coke of Shenhua coal direct liquefaction residue were investigated.The mixed reaction model was used to fit the experimental data and get the kinetic parameters.The results show that the gasification reactivity can be improved by elevating the gasification reaction temperature and increasing water vapor content in gasifier.The gasification reactivity of semi-coke residue with water vapor is stronger than that of de-ashing semi-coke residue.The gasification reactivity of the semi-coke residue expressed by the reactivity index R' is consistent with the reactivity expressed by fixed carbon conversion rate and reaction rate.The total reaction order of semi-coke residue with water vapor is between 0.635 8 and 0.721 7,and the activation energy is between 149. 43 k J/mol and 198.85 k J/mol obtained by the mixed reaction model.