Based on the comparison of play source rock and hydrocarbon phase,hydrocarbon pooling characteristic and difference in the south fault belt from west to east have been summarized,and tectonic movement difference was thought to be the main controlling factor causing difference of hydrocarbon pooling characteristic in south fault belt,West Pearl River Mouth Basin.Three kinds of multihydrocarbon pooling patterns have been put forward by the differences of structural style and valid source-hydrocarbon.