Abstract: After major breakthroughs in exploration in Jurassic of Tabei sag in Turpan-Hami basin, and discovery of a lot of coal-formed hydrocarbon oil/ gas fields, heavy oilfields with multiple series and types combined hydrocarbon-bearing were found in Triassic of Tainan sag.Based on analyses of formation and evolution of Turpan-Hami basin, this paper discussed oil/gas geologic condi tion and accumulating regulari ty of three major petroliferous systems (J-K, P-T, C)and four major hydrocarbon accumulating units (Tainan, Taibei, Tuokexun and Hami), and evaluated resource potential, presented exploration strategy of following scientific exploration program and realizing continuous increase of oil and gas reserves.

Key words: Turpan basin, Hami basin, Oil and gas exploration, Strategy