The evolution history of multicycle in Tarim Basin is determined by long distance drifted small plates

complicated basement and complex tectomic activities of the neighbouring plates.The basin underwent four evolution stages such as Paleoasian Ocean

Paleotithys Ocean

Mesotithys Ocean and Neotethys Ocean

which resulted in a milti-prototype basins

the superimposition in which the basin united as a whole at first

then disintegrated later and reunited again at last with variable thermal regime.The multicyclic evolution of the basin resulted in multiple petroleum system

multi set of souce rocks

multiple oil generating depression

multi-stage of oil generation

multi-type of reservoiring spaces

multi-type of sealing and covering system

complex passage networks and multi-type of trap system.The reformation

resealing and preservationg of post formation of oil and gas led to complicated hydrocarbon pool-forming history in multiple hydrocarbon accumulation belts.On this basis

oil and gas exploration in Tarim Basin from now on should aim at the discovered oil and gas fields

increase reserves and expand exploration realm.