Integrating carbonization and pelletization becomes an attractive technology for energy usage of biomass resources. But challenges still remain for the densification of carbonized biomass. Firstly, the pellet quality by using lignin, starch, and poly(vinyl alcohol) (PVA) as binders was compared. PVA performed the best both with respect to the pellet strength and hydrophobicity. Furthermore, a new pelletization method by using organic binders coupled with additives was suggested to enhance the pellet strength. The strength of the PVA pellet increased by employing the biomass gasification residue (BGR) as the additive. The mechanism of the influence of the binder and the BGR additive on the pellet quality was discussed. Overall, applying PVA as a binder and the BGR as an additive could be an adequate method to produce carbonized pellet with high quality. Using the BGR as an additive for pelletization gives a chance to reduce the binder usage and also provides a good disposal method of the BGR