A polyfunctional catalyst for hydrorefining of the catalytic naphtha cut with a high olefin content is proposed. This catalyst induces isomerization and hydrogenation of olefins on contact with the feedstock with formation of isoparaffins, isomerization of n-paraffins, hydrotreating to remove sulfur, and other processes. The naphtha obtained satisfies the Euro-4 standard (2005) with respect to quality.