Bottom hole flowing pressure in deep zone oil wells lifted by ESPs is critical to ESP pumping diagnoses, and is indispensable to reservoir performance analysis.As downhole surveillance technique is either inaccessible or expensive, field downhole flowing pressure measurements are scarce.Whereas, dynamic liquid level shooting can be performed routinely and economically, its data are abundant in the field.For this reason, it is frequently estimated by utilizing static pressure gradients in the field.However, this method does not account for the existence of nature gas in the annulus liquid column.A new method proposed in this paper takes into account many related factors to calculate bottom hole flowing pressures in ESPs lifted oil wells.This new technique divides the calculation section into two segments, taking ESP pump intake as a nodal point and predicating the desired flowing pressure in the direction of fluid flow.Validated against field data, its average absolute error is 0.51MPa, which is more accurate than that of static pressure gradient method of 2.83MPa. As a result, the new method developed in this paper is accurate for engineering purposes, and can be utilized in the field.