Preparation process for the dispersion of homopolymer of vinyl chloride with high content of free hydroxyl as adhesive, more precisely, the current patent comes to be the invention of the preparation process for the dispersion of homopolymer of vinyl chloride with high content of free hydroxyl as adhesive where it is used an homopolymer of vinyl chloride of high molecular weight which reacts with a vegetable plasticizer, polyarilic glycolic triester based, biodegradable and non-toxic, in order to reach a certain content of free hydroxyl controlled by the balance of a vegetable ethoxylate surfactant, thus providing, an extreme adherence over different polymeric substrates, or not, due to the high intermolecular forces ‘Van Der Waals’ which indicate the dimension of the action on the surface.