Abstract: Technical measures for cleaner production used in 1.2×10⁶ t/a delayed coking unit of Urumqi petrochemical refinery were introduced in this paper.The measures were mainly considered from the energy saving and pollutants treatment aspects, through adopting advanced technologies, reducing the emission, optimizing the operation, and reforming the technologies.The pollutants generated from the production of device could be treated as well as those from the refinery production processing according to the process characteristics.In this way, not only the aims of saving energy, reducing pollution and improving efficiency were reached, but also the cleaner production of unit were realized.