Abstract: In allusion to the viscosity and density growing year by year and heavy oil content continuously higher for Tarim Crude Oil, the operational problems of Korla-Shanshan Pipeline in efficiency and process parameters of pump units, transportation cost and operation safety are analyzed. The relative measures to be taken to increase blend rate of light oil or separately treat heavy oil, inject GY-3 PPD and install intermediate heating station are put forward. The authors consider that these ways are very helpful to improve the property of crude oil, increase transportation capacity and cut down operation cost of the pipeline.