Abstract: Poor diesel must be refined in order to meet specification and environment protection standards. Hydrofining is an idea technological process to refine poor diesel, it needs, however, large amount of investment, and operating cost is high. Non-hydrofining is a relatively economic and practical alternative of hydrofining. This paper introduces new development in non-hydrofining technologies such as chemical refining, solvent refining, absorption refining, oxidization/extraction desulphurization and biological desulphurization. It is believed that absorption refining is an effective way to improve diesel quality in China.