Abstract: Contaminated volume from different product oils will form at their interface so that the calculation, monitoring, control and treatment for the contaminated volume of batch transportation pipeline of oil product become an important link. The common calculation models of contaminated volume like the diffusion theory model, Austin-Palfrey model and empirical model are compared. The result shows that the model derived from turbulent diffusion theory is most reliable and available, which can be used to calculate the contaminated volume of oil products in batch transportation pipelines.