Abstract: Using toluene as biomass gasification tar model compound,the effects of Ni loading and addition of Ce and La metal modification on the catalytic performance of Ni/HZSM-5 catalyst for toluene reforming were studied in a small quartz reaction tube,combined with BET,XRD,SEM,H₂-TPR,TGA and XPS characterization methods to investigate the activity and stability of catalysts.The experimental results show that when the reaction conditions are 750 ℃ and the water-carbon ratio（S/C）is 2.5,the optimum Ni loading is 6wt%. Activity and stability of 6Ni/HZSM-5 can be greatly improved by adding metal Ce and La,of which the effect is best when 3wt% Ce is added alone,adding Ce and La at the same time will produce a synergistic effect. Among them,the 6Ni-3Ce-1La/HZSM-5 catalyst has the best performance,the conversion efficiency of toluene can be as high as 95.48%,the carbon deposition rate is only 0.41wt%,and it can maintain high thermal stability.