The invention provides a shutdown leakage judgment method and system for a finished product petroleum pipeline, computer equipment and a computer readable storage medium, and relates to the technicalfield of petroleum. The method comprises the steps that historical running data and pipeline basic data of the finished product petroleum pipeline are acquired; the pipeline pressure drop caused by temperature difference in the shutdown process of the finished product petroleum pipeline is determined according to the historical running data and the pipeline basic data; pressure data of an upstreamstation yard of the finished product petroleum pipeline section are collected; and shutdown leakage of the finished product petroleum pipeline is judged according to the pipeline pressure drop and the pressure data. According to the shutdown leakage judgment method and system for the finished product petroleum pipeline, the computer equipment and the computer readable storage medium, the normal pressure drop phenomenon generated after shutdown of the finished product petroleum pipeline is fully taken into account and quantitatively calculated, the pipeline monitoring data are applied to judgment in the shutdown process of the finished product petroleum pipeline, the defect that in a traditional method, erroneous judgment is prone to occurring in judgment of the shutdown process is overcome, and the characteristics of being low in cost, high in usability and accurate in judgment result are achieved.