The tutbidite systems of the southern Ordos basin mainly developed in the Chang 7 and Chang 6 oil-bearing of the Yanchang formation. From its sedimentary characteristic, the turbidite fan could been distinguished and divided into slope-moving turbidity and slide-moving turbidity. The facies belts of slope-moving tuibidity developed correspondingly complete and many times tuibidity current sediment vertically overlapped each other. The facies could been divided into slope-channel-root fans, braided channel, middle braided channel , braided channel front-middle fans, outer fans and basin plain. The slide-moving turbidity that appeared in the deep lake sedimentary only been divided into middle facies and edge facies, and the facies belts hardly distinguished easily. The two turbidity fans mainly distributed on the near-root-slope belts and the far-root-slope belts. The slope-moving tuibidity that sedimentary thickness was thiner mainly induced randomly by occasional factors, and its reservoir quality was correspondingly bad, but the slope-moving turbidity that its sedimentary thickness was thicker and distributed broad was the mainly oil-gas exploration target in the lithologic oilpool. It formed with advantageous slope structure and the steady material source supply.