Abstract: The natural gas hydrates are one of the new energy resources of the 21st century, and many countries in the world pay great attention to investigation of the natural gas hydrates.In the north of Qinghai-Tibet plateau, there is an unique series of marine Jurassic sediments in Qiangtang basin which is the rich gas resources, traps and permafrost strata.The author discusses the forming conditions of natural gas hydrates, the tectonic unit division and the ever-permafrost characteristics.At the same time, the author placed emphasis on the geophysics recognition and prediction of natural gas hydrates.In accordance with the related analyses, the geological conditions are favorable for the natural gas hydrates exploration in permafrost zone.Taking long views, the investigation of gas hydrates in Qiangtang basin should be carried out as soon as possible.