This paper describes the effect of Cu addition on the gas production of a fluidized bed gasifier to determine the relationship between Cu and gasification. Cu at various concentrations was used in the experiment to prepare artificial waste for evaluating the effect of Cu on the syngas composition, syngas of low heating value, gas production rate, and H-2 yield of the gasification process. As a result, we determined that when the concentration of added Cu was above 0.3 wt %, the molar percentage of H-2 in the synthetic gas increased by more than 40.99% and the H-2 yield increased by 14.43%, compared with the process without Cu addition. This result showed that adding Cu enhanced gasification and increased H-2 production.