The purpose of this paper is to evaluate the influence of socio-political instability on private investment in CEMAC countries. To do this, we used Socio-political instability is seen as a risk factor for private investment. To achieve this, we used GCM in panel data over the period 1987-2016. We found that a negative correlation between the coefficient and the domestic investment in the countries of the CEMAC. Taking into account the results of the study, strengthening political dialogue, social cohesion and good policies of redistribution of national wealth must be one of the main priorities of the administrative authorities.