A long chain alcohols with S and N was synthesized by di-n-octylamine and disulfide carbon as intermediate. Which reacted with benzene boric acid, a new type of nitrogen and sulfur containing phenylboronic lubricating oil additive was synthesized. The structure of the intermediate and the synthetic product was characterized by infrared spectroscopy. And elemental analysis was used to test the synthetic product. The hydrolysis stability and the oil solubility in the synthetic base oil (PAO) of the synthetic product were evaluated. The tribological performance of the synthetic product which was added in the PAO was test by four-ball friction and wear testing machine. Scanning electron microscopy (SEM) and energy spectrometer (EDS) was used to analysis the friction surface of steel balls. The results are as follows: the time of hydrolysis was more than 180 h. The synthetic product could completely dissolved in the PAO when the additive ratio was less than 2.5%. When the adding proportion was 2.5%, the PB was 1100 N, increased by 181%. The WSD reached the minimum (0.48mm), which was reduced 30.4%. And the average friction coefficient was reduced 21.6% to 0.087. The synthetic product showed good anti-extreme pressure, anti-wear performance and anti-friction performance. The results show that the wearing of the friction surface was decreased significantly when the synthetic product was added. The friction surface formed by a composite coating which containing S, N, B.