Abstract: Impact of flow rate on the static electricity of products in transportation and storage is studied in view of the issues concerning fire and electrostatic safety incidents caused by accumulation of static electricity and discharge. Based on previous streaming current formula and double electrode layer theory, a reduced form of the streaming current formula is deduced after solution of the streaming current formula with the operator splitting method and simplification of relevant boundary conditions. It covers many factors which apply electrostatic influence on the oil, including oil temperature, pipeline diameter size, oil dielectric constant, ion mobility, oil density and so on. Experimental data is used to determine correction parameters of the theoretical calculation formula. Verification shows that the experimental data matches well with the theoretical calculation results. Research results show that flow rate has a significant impact on the static electricity of pipelined oil and that oil streaming current size is directly proportional to 3.23 power of the flow rate.