Abstract: The pressure change along the pipeline in the batch transportation is mainly caused by the change of pipeline characteristic and products with different densities within the pipeline, that means, the higher the potential difference, the greater the change of pressure. The quantitative and qualitative analysis or the change law of pressure along pipeline produced from different products with different densities for the hilly pipeline have been made with hydraulic calculation equations combined with the case. In the paper, pressure control method for danger point has been presented.