Under the guidance of seeking for large and middle scale oil and gas fields in recent years, the oil and gas exploration in china offshore areas is grounding on regional study and scientific and reasonable deployment as complementation. Considering the unique and complex geological conditions of china offshore area, the innovations of geological understanding and exploration technology are all emphasized, to keep exploration with high efficiency. Great successes have been achieved on the basis of this paradigm, and the newly discovered reserves make historical breakthroughs continuously, suggesting the golden time of the present china offshore oil and gas exploration. However, with the enhancement of exploration extent and enlargement of exploration area, the oil and gas exploration in China offshore area will face more and more challenges.