Abstract: Analyzes a running work condition of centrifugal pumps during oil storage and transportation and points out that the property curve of pump itself combined with equipment's resistance curve determines running work condition of centrifugal pumps, and both viscosity of medium transported and solid grains or foreign matters existed would affect the running of the pump. Gives the relation of these effective factors with centrifugal pump's property and equipment's resistance curve, recommends a method determining running work condition point. All of these provide reference for reasonable selection of centrifugal pump and design of equipment, and provide a base for pump's highly efficient and reliable operation.