The purpose of the study focused on the analysis of the effects of the implementation of the Continental Free Trade Area (AfCFTA) on the Chadian economy. Indeed, Chad, classified among the least developed countries, benefits from a reduction in the implementation of liberalization according to the liberalization schedule. A recursive dynamic computable general equilibrium model adapted from the PEP-t model of Décaluwé et al (2013) was used to model the Chadian economy. The accounting basis of the model is the SAM of Chad developed by Décaluwé in 2008. This SAM which has 5 economic agents, 19 branches and 19 products has been adapted to our model with a breakdown of capital into public capital and private capital then a breakdown of work in formal work and informal work.