A novel fluidized-bed gasifier was designed in which rice husk was fluidized and gasified without inert additives. The gas compositions of CO, CO2, H-2, CH4, and O-2 were determined by an online analyzer and gas chromatography. The results showed that low fluidized velocity and low gasification temperature (550-650 degreesC) were beneficial to the production of syngas with a high composition of CO. The composition of H-2 was influenced slightly by the equivalent ratio. The average composition of H-2 was almost unchangeable to different fluidized velocities. The minimal fluidized velocity v(mf) of rice husk without inert additives experimentally determined was 0.495 m/s, which was higher than that of the two-component system containing rice husk and sand (v(mf) < 0.3 m/s). The throughput of rice husk in this reactor was higher than that in a fixed bed with the same volume. This fluidized-bed reactor had a longer service term than a traditional fluidized bed for a two-component system.