Abstract: The research on the adding modifier to the oil in LuNing pipeline to increase the economical profits began in 1994, and then the commercial test on drugged oil transportation continued in July 1995. For a year's operation, the obvious social and economical benefits have been obtained. The objective of adding modifier, development of the modifier and indoor test, the test process of adding modifier, the pipeline operating during different stages, the energy consumption after adding the modifier and the results obtained from the adding test are introduced.