The Yinggehai Basin,located on the continental shelf at water depths of 50-200 m in the northwestern South China Sea,is one of the largest Cenozoic pull-part basins in the world.Ten sediments samples were collected from the drill core in order to determine the provenance of the Miocene to Quaternary sediments in the Yinggehai Basin.U-Pb geochronologic analysis of detrital zircon grains extracted from the ten sediments samples using a laser ablation inductively coupled mass spectrometer (LA-ICP-MS) yields ages ranging from Archean to Cenozoic which generally revealing a wide variety of sources.