Abstract: The two blending transportation methods to delivery different crude oils in LuNing and ZhongLuo Oil Pipelines and field measurements are described. The authors consider that there is a obvious difference in physical behavior between the domestic oil and imported oil and the mean blending of oils is an important technological requirement, otherwise, the operation safety of pipeline will not be ensured. The major problem on the blending transportation of different crude oils is studied and the scenario to solve it is put forward and site verified.