Abstract: The super heavy oil in Fengcheng oilfield is characterized by high density, high viscosity, high resin?asphalt content, high mudsand content in produced fluid and multiple emulsion forms, which result in difficult oil?water separation in this oilfield by the fact of high oil bearing content in the separated wastewater, high dosage for sewage treatment, low system operation efficiency and high treatment cost.The hydrocyclone separation is a economical and efficient technology for realizing high?temperature and sealed treatment, improving separation and waste oil back mixing treatment effect. This paper studied the suitable hydrocyclone separation technology for super heavy oily wastewater from Fengcheng oilfield in detail, forming a technology of swirl oil removal+chemical reaction for this super heavy oily wastewater treatment, which supplements or perfects the technology of ion swirl reaction for oily wastewater treatment in Xinjiang Oilfield as a new way