<p>This paper presents a research study on the selection of an optimal plasticizer composition for polymer-modified bitumen obtained using different technologies. A multicriteria optimization method based on partial and generalized efficiency criteria was used. For the obtained polymer-modified bitumens, partial and generalized efficiency criteria were calculated based on their physicochemical properties. The hydrocarbon group composition of the plasticizers was analyzed. It was established that binders with quality indicators exceeding standard requirements can be obtained by adjusting the hydrocarbon group composition of the plasticizer and selecting optimal ratios of aromatic and paraffin-naphthenic components. Generalized efficiency criteria can be used to assess the quality giveaway of such binders.</p>