The influence of coupling demineralization with the torrefaction pretreatment process on the pyrolysis characteristics and kinetics of rice husk by a thermogravimetric analyzer was investigated in this work. It was found that demineralization has a positive effect on the volatile release, but torrefaction resulted in the reduced formation of volatiles during subsequent pyrolysis. The four independent parallel first-order reactions model was used to evaluate the pyrolysis kinetic parameters. It appears that rice husk, after coupling demineralization with torrefaction pretreatment, has a higher activation energy than that of raw rice husk.