Abstract: Take the super-sized oil refinery of 1000×10⁴ t/yr capacity for example, the optimal design for the tank farm of intermediate feed stock is studied. Based on the traditional design of such kind of tank farm, the design requirements for the tank farm on overall process flow, storage days, tank quantities and oil properties are put forward according to relative standards and oil properties. The authors consider that the optimal design for such tank farm can not only raise the utilization rate of lands, but also lower power consumption and save project investment.