In this study, We have investigated the kinetics on the char-CO2 gasification reaction. Thermogravimetric analysis (TGA) experiments were carried out for char-CO2 catalytic gasification of an Indonesian Roto lignite. Na2CO3, K2CO3, CaCO3 and dolomite were selected as catalyst which was physical mixed with coal. The char-CO2 gasification reaction showed rapid an increase of carbon conversion rate at 60 vol% CO2 and 7 wt% Na2CO3 mixed with coal. At the isothermal conditions range from 750 oC to 900 ℃, the carbon conversion rates increased as the temperature increased. Three kinetic models for gas-solid reaction including the shrinking core model (SCM), volumetric reaction model (VRM) and modified volumetric reaction model (MVRM) were applied to the experimental data against the measured kinetic data. The gasification kinetics were suitably described by the MVRM model for the Roto lignite. The activation energies for each char mixed with Na2CO3 and K2CO3 were found a 67.03~77.09 kJ/mol and 53.14~67.99 kJ/mol.