Abstract: The characteristics of S Zorb unit, in SINOPEC Jinling Petrochemical Company, are described. This article analyzed the factors influencing the production of low sulfur gasoline, loss extent of octane number as well as increase of liquid yield and reduction of energy consumption and suggested measures for optimization of operation parameters of feed quality controlling and reactor, regeneration and stabilization systems. By measures suggested, compared with base case, the gasoline quality is raised with sulfur less than 5?g/g, the energy consumption is less than 33.44 MJ/t, and the octane number loss of clean gasoline is only 0.3-0.7 units. The gasoline yield increases 0.23%.