Superimposed reformation of multi-cyclic tectonic movements experienced by marine basins in Southern China result in quite differences of oil and gas reserving in various areas. Therefore

a special regularity of the generation of oil and gas reservoirs (play) in these basins must be probed. Focal point shall be stressed in the research and each oil and gas play pattern shall be summarized accordingly to the feature of various areas by fanning out from point to area. At present

emphasis shall be put on the assessment of regional block tectonics and on the reassessment of re-determination and reserving conditions of hydrocarbon resource rocks when studying marine facies in Southern China. The latest exploration target can be selected out by dissecting play conditions of typical oil and gas reservoirs and getting to know favorable matching of play elements.