The aim of this article is to investigate the relationship between class and voting in the plebiscite for a new constitution in Chile. To this end, the results of the vote were taken and statistically associated with class. The results show a high positive correlation between the Approve option, the Constitutional Convention option, and the proletariat. At the same time, this relationship is reversed, with a high negative correlation, in the case of the bourgeoisie and decision makers. These results suggest a polarization in the defense of class interests, regarding the prospect of modifying the status quo enshrined in the current constitution.