Using selfdeveloped LSW201 additive, the effects of intensifying distillation on Oman crude oil were determined at different concentrations by simple distillation．After using LSW201 additives in vacuum distillation devices of Luoyang petrochemical refinery, LWS201 1# additive was very good. The experimental and industrial results show that LSW201 additive for crude oil distillation has a good strengthening effect, the best mass fraction of additive is 100～120 μg/g.