Abstract: Based on the general refining process and gasoline pool of SINOPEC Wuhan Company，the advantages and disadvantages for upgrading gasoline quality from national standard Ⅴ to national standard Ⅵ were analyzed. The linear program model for gasoline blending was established for quantitative analysis of upgrading gasoline to national standard ⅥA and ⅥB. The sensitivity analysis of alkylate output，benzene content of reformer gasoline，olefin content and vapor pressure of S Zorb gasoline were performed to provide the basis for formulating the emergency plan of gasoline for sale.

Key words: gasoline, Nationalstandard Ⅵ, quality upgrading, gasoline blending, linear program model, measures