Abstract: The breakthrough of hydrocarbon exploration often depends on the change of explorative strategy and the innovation of exploration cognition, it is by which that a significant discovery in Junggar basin has been made recently. It is a continuous oil play in Baikouquan glutenite reservoir of the Lower Triassic in Mahu sag of northwestern margin of Junggar basin. In this play the integral a hundred?millionton oil reservoir with light?oil accumulation far from source sequences has been proven. The oil?gas distribution in this reservoir is characterized by integral oil bearing, local enrichment and“dessert”high production. The high production of hydrocarbon is dominantly controlled by three factors: (1) A large?sized and effective fan delta front facies reservoir with more micro?fractures; (2) high maturity of light crude oil and commonly producing gas, and (3) abnormal high pressure. This favorable facies belt is mostly distributed in the superimposed zones with abnormal high pressure and light hydrocarbons, showing the internal connection of hydrocarbon accumulation and enrichment. It is predicted that the area of future favorable exploration target could be about 2 800 km2 and the total oil?gas resources amount to 14.7×108 t. It will not only be a new base for incremental hydrocarbon reserves and production of Xinjiang oilfield, but also an important supplement to global continuous oil play explorations and researches