<p>Biomass gasification using laterite nickel ore (LNO) as bed material is helpful to reduce tar yield and improve gasification performance. In this study, the biomass tobacco stalk (TS) gasification experiment was carried out at 650°C in a laboratory-scale fluidized bed reactor using laterite nickel ore as gasification bed material. The effect of mass ratio of bed material to raw material (defined as <i>R</i>) on gasification characteristics was studied. The results show that the addition of LNO significantly enhances the tar cracking reaction during the gasification process; the tar yield decreases; the syngas yield increases, and the components are optimized. When <i>R</i> is 1.62, the maximum effective gas yield is 0.26 m³/kg, and the minimum tar yield is 16.20 mg/kg. With the increase of <i>R</i>, the aromatic properties of tar are weakened; polycyclic aromatic hydrocarbons are transformed into monocyclic aromatic hydrocarbons and alicyclic compounds, and the types of tar components are reduced. These results provide an optimal method for the design of biomass fluidized-bed gasification experiment using laterite nickel ore as bed material.</p>